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seawater

B1 noun #11 가장 일반적인 13분 분량

seawater

상위 11

연습하기 예시 노트와 팁 seawater 30초 만에

설명 seawater in your Level:

Seawater is the water from the sea. It is very salty. You cannot drink it. When you go to the beach, you see seawater. It is usually blue or green. Many fish live in seawater. If you swim in the sea, the seawater gets on your skin. It feels different from the water in your shower. Seawater is very important for our world because there is so much of it. Most of the Earth is covered in seawater. It is cold in some places and warm in others. You can use a bucket to play with seawater at the beach. Sometimes, seawater has sand or seaweed in it. It is beautiful to look at when the sun shines on it. Seawater is part of nature. It is not like the water we use for cooking. We call that fresh water. Seawater is salt water. It is the home of whales and dolphins. They love the seawater. When you are at the ocean, you can smell the seawater. It has a special smell. It is a very simple word to learn. Just think of the sea and the water in it. That is seawater. It is a big part of our planet. Everyone should know what seawater is because it is everywhere around the islands and coasts.

무료 가입하고 전체 설명 읽기

Seawater is the salty water that we find in the oceans and seas. It is different from the water in rivers or lakes because it has a lot of salt in it. This salt comes from rocks on the land and is carried to the sea by rivers over a long time. You can find seawater all over the world. It covers more than seventy percent of the Earth's surface. Because it is so salty, humans and most land animals cannot drink it. If you drink too much seawater, you will become very sick. However, many animals like sharks, fish, and octopuses live in seawater every day. They are made to live in salty water. When you go swimming in the ocean, you might accidentally taste the seawater, and it will taste very strong. Seawater is also very heavy. If you try to carry a big bucket of it, you will feel how heavy it is. Scientists study seawater to understand how the ocean works. They look at how warm or cold the seawater is. They also look at how much salt is in it. Seawater is very important for the weather. The sun heats the seawater, and then it turns into clouds and rain. This is part of the water cycle. Seawater is a very common word for people who live near the coast.

무료 가입하고 전체 설명 읽기

Seawater is the saline water found in the Earth's oceans and seas, characterized by its high concentration of dissolved salts and minerals. On average, seawater has a salinity of about 3.5%, which means that for every liter of water, there are about 35 grams of salt. The most common salt in seawater is sodium chloride, which is the same as the table salt we use for food. Seawater is essential for the global climate because it absorbs a large amount of heat from the sun and distributes it around the planet through ocean currents. This process helps to regulate temperatures on land. Seawater is also a vital habitat for millions of species, from tiny plankton to the largest whales. In many parts of the world, seawater is being used as a source of fresh water through a process called desalination. This is very important in dry areas where there is not enough rain. However, desalination is expensive and requires a lot of energy. Another important aspect of seawater is its role in the carbon cycle. It absorbs carbon dioxide from the atmosphere, which helps to slow down global warming. But this also makes the seawater more acidic, which can be harmful to coral reefs and shellfish. When using the word seawater, it is important to remember that it is a non-count noun, so we usually don't say 'seawaters' unless we are talking about different specific bodies of water.

Seawater is the complex chemical solution that constitutes the oceans and seas, distinguished by a variety of dissolved substances, primarily sodium and chloride ions. The composition of seawater is remarkably consistent across the globe, a phenomenon known as Forchhammer's principle, which states that the ratios of major ions remain constant regardless of the total salinity. This salinity typically ranges from 33 to 37 parts per thousand, influenced by factors such as evaporation, precipitation, and freshwater runoff from rivers. Seawater plays a critical role in the Earth's thermodynamic system, acting as a massive heat sink that moderates global climate patterns. The density of seawater, which is greater than that of fresh water, is determined by its temperature and salinity, driving the global conveyor belt of ocean currents. This thermohaline circulation is essential for transporting nutrients and oxygen to the deep ocean, supporting diverse marine ecosystems. In industrial applications, seawater is utilized for cooling in power plants and as a feedstock for desalination facilities, which provide potable water to water-stressed regions. However, the environmental impact of seawater desalination, including the disposal of concentrated brine, is a significant concern. Furthermore, the increasing absorption of anthropogenic carbon dioxide by seawater is leading to ocean acidification, a process that reduces the availability of carbonate ions necessary for calcifying organisms like corals and mollusks to build their shells and skeletons. Understanding the physical and chemical properties of seawater is therefore fundamental to addressing contemporary environmental challenges such as climate change and biodiversity loss.

무료 가입하고 전체 설명 읽기

Seawater, the primary component of the Earth's hydrosphere, is an intricate aqueous solution containing a vast array of dissolved inorganic and organic substances. Its chemical complexity is a result of billions of years of geological and biological processes, including volcanic outgassing, continental weathering, and the metabolic activities of marine organisms. The salinity of seawater, while relatively stable on a global scale, exhibits significant regional variations driven by the balance between evaporation and freshwater input. For instance, the Red Sea possesses exceptionally high salinity due to high evaporation rates and minimal riverine inflow, whereas the Baltic Sea is relatively fresh due to extensive runoff and limited exchange with the open ocean. Beyond its chemical makeup, the physical properties of seawater, such as its high heat capacity and dynamic viscosity, are pivotal in shaping the planet's climate and weather systems. The stratification of seawater, based on density gradients, creates distinct layers that inhibit vertical mixing, thereby influencing the distribution of light, nutrients, and dissolved gases. This stratification is increasingly being disrupted by global warming, which intensifies the density difference between the warm surface layer and the cold deep water. In the context of global biogeochemical cycles, seawater serves as a major reservoir for carbon, nitrogen, and phosphorus, facilitating the exchange of these elements between the atmosphere, biosphere, and lithosphere. The ongoing phenomenon of ocean acidification, caused by the uptake of excess atmospheric CO2, represents a profound alteration of seawater chemistry with potentially catastrophic implications for marine life. Consequently, the study of seawater is not merely a pursuit of marine science but a critical endeavor for understanding the resilience and vulnerability of the entire Earth system in the face of unprecedented environmental change.

무료 가입하고 전체 설명 읽기

Seawater represents the primordial medium of life on Earth, a sophisticated and dynamic solvent whose properties are inextricably linked to the planet's evolutionary trajectory and climatic stability. It is a multi-component electrolyte solution where the interplay of ionic strength, temperature, and pressure dictates the solubility of gases and the speciation of trace elements. The thermodynamic properties of seawater, including its colligative properties like freezing point depression and osmotic pressure, are fundamental to the survival strategies of marine biota and the operation of global physical processes. The concept of 'residence time' in seawater—the average duration an element remains in the ocean before being removed by sedimentation or biological uptake—reveals the profound timescales over which the ocean's chemical composition is regulated. Furthermore, seawater's role in the 'biological pump'—the process by which organic carbon is sequestered from the surface to the deep ocean—is a cornerstone of the Earth's carbon cycle and a key determinant of atmospheric CO2 levels. The intricate buffering capacity of seawater, primarily governed by the carbonate system, has historically mitigated the impacts of environmental fluctuations, yet this capacity is currently being tested by the rapid influx of anthropogenic carbon. The resulting shifts in seawater's saturation state with respect to calcium carbonate minerals pose an existential threat to the structural integrity of marine ecosystems. In the realm of theoretical oceanography, the equations of state for seawater are continually refined to provide more accurate models of ocean circulation and heat transport, which are essential for predicting future climate scenarios. Thus, seawater is far more than a mere geographical feature; it is a complex, life-sustaining fluid whose subtle chemical and physical nuances are of paramount importance to the continued habitability of our planet.

무료 가입하고 전체 설명 읽기

연습하기 예시 노트와 팁

seawater 30초 만에

Seawater is the salty water of the oceans, essential for life on Earth and global climate regulation through heat absorption and transport.
It has an average salinity of 3.5%, primarily composed of sodium and chloride ions, making it undrinkable for humans without treatment.
The physical and chemical properties of seawater, such as density and pH, are critical indicators of environmental health and climate change impacts.
Seawater is used in various industries, including shipping, power generation, and desalination, providing vital resources for coastal and global populations.

Seawater is the fundamental substance of our planet's hydrosphere, representing the complex chemical solution that fills the vast basins of the Atlantic, Pacific, Indian, Arctic, and Southern Oceans. It is defined primarily by its salinity, which distinguishes it from the fresh water found in rivers, lakes, and glaciers. When people use the term seawater, they are usually referring to the liquid in its natural environment or its specific properties in scientific, industrial, or recreational contexts. For instance, a marine biologist might analyze the pH levels of seawater to study coral bleaching, while a coastal engineer might consider the corrosive effects of seawater on steel structures. The term is ubiquitous in discussions about climate change, oceanography, and maritime activities. In everyday conversation, seawater is often used to describe the experience of swimming or the physical sensation of salt on the skin after a dip in the ocean. It is a word that evokes the immense scale of the earth's water systems and the biological diversity contained within them. From the microscopic phytoplankton to the massive blue whale, every marine organism depends on the specific composition of seawater for survival. Understanding seawater involves recognizing its role as a solvent, a habitat, and a driver of global weather patterns through thermohaline circulation. It is not just water with salt; it is a dynamic medium containing dissolved gases like oxygen and carbon dioxide, as well as essential nutrients like nitrates and phosphates. People use this word when they want to be more specific than just saying 'the ocean' or 'the sea,' focusing instead on the liquid itself and its unique characteristics.

Scientific Context: In laboratory settings, seawater is treated as a complex electrolyte solution with a mean salinity of approximately thirty-five parts per thousand.

The desalination plant was designed to convert millions of gallons of seawater into potable drinking water for the arid coastal city.

Environmental Context: The warming of seawater is a primary driver of coral bleaching events that threaten the biodiversity of the Great Barrier Reef.

After the storm, the streets were flooded with a mixture of rain and seawater, leaving a thin crust of salt as it evaporated.

Industrial Context: Ships use seawater in their ballast tanks to maintain stability during voyages across the open ocean.

The ancient mariner lamented that there was seawater everywhere, but not a single drop was safe for him to drink.

Marine turbines harness the kinetic energy of moving seawater to generate renewable electricity for local communities.

The diver felt the cold sting of seawater against his face as he descended into the dark depths of the trench.

Using the word seawater correctly requires an understanding of its role as a non-count noun in most contexts, though it can be used in the plural when referring to different types or bodies of water. In descriptive writing, seawater often serves as the subject of verbs related to movement, temperature, and chemical change. For example, one might write about how seawater 'laps' against the shore, 'corrodes' metal, or 'absorbs' heat from the sun. When discussing environmental issues, seawater is frequently paired with adjectives like 'acidifying,' 'warming,' or 'polluted.' In technical writing, it is common to see seawater used as a modifier in compound nouns such as 'seawater desalination,' 'seawater cooling,' or 'seawater intrusion.' The latter refers to the movement of saline water into freshwater aquifers, a major concern for coastal agriculture. To use the word effectively, consider the sensory details it provides: the smell of brine, the taste of salt, and the visual clarity or turbidity of the liquid. It is also important to distinguish between seawater and 'salt water.' While often used interchangeably, seawater specifically implies the water found in the sea, whereas salt water could refer to any water with salt, including that in a laboratory or a salt lake. In literature, seawater can be a powerful metaphor for the vastness of the unknown or the relentless passage of time. Writers might describe the 'seawater in one's veins' to suggest a deep, ancestral connection to the ocean. When constructing sentences, ensure that the context clearly indicates whether you are discussing the physical substance, the chemical composition, or the environmental impact. For instance, 'The seawater was crystal clear' focuses on appearance, while 'The seawater's salinity was measured at thirty-four parts per thousand' focuses on scientific data. By varying the adjectives and verbs associated with seawater, you can convey a wide range of meanings and tones, from the scientific and objective to the poetic and evocative.

Descriptive Usage: The sunlight danced on the surface of the turquoise seawater, creating a shimmering mosaic of light and shadow.

The rusted hull of the sunken ship was slowly being reclaimed by the corrosive power of the seawater.

Technical Usage: Engineers must select materials that are resistant to seawater corrosion to ensure the longevity of offshore oil platforms.

The laboratory technician carefully titrated the seawater sample to determine its exact chloride concentration.

Metaphorical Usage: He felt as though his lungs were filled with seawater, gasping for air in the overwhelming silence of the library.

The child collected a bucket of seawater to keep her pet crabs alive while she built a sandcastle.

Rising global temperatures are causing the thermal expansion of seawater, leading to significant sea-level rise.

The smell of fresh seawater and decaying kelp is a characteristic feature of the rugged coastline.

The word seawater is a staple in various professional and casual environments, particularly those connected to the ocean. In the world of science and education, you will hear it frequently in biology, chemistry, and geography classrooms. Professors and researchers use it when discussing marine ecosystems, ocean currents, and the chemical properties of the Earth's oceans. Documentary narrators, such as David Attenborough, often use the word to describe the habitats of marine life, from the sunlit surface to the crushing pressures of the abyss. In the maritime and shipping industries, seawater is a common topic of conversation among sailors, engineers, and port authorities. They discuss seawater in relation to ballast management, hull maintenance, and the operation of onboard desalination systems. Environmental activists and policymakers use the word when advocating for ocean conservation, highlighting the dangers of seawater pollution and the impacts of climate change on marine environments. You will also encounter the word in news reports about natural disasters, such as tsunamis or storm surges, where seawater inundation poses a threat to coastal communities. In the tourism and travel industry, seawater is mentioned in brochures and advertisements for beach resorts, scuba diving excursions, and spa treatments that utilize the perceived healing properties of marine minerals. Even in culinary contexts, seawater is sometimes discussed, particularly in the traditional methods of boiling seafood or the artisanal production of sea salt. In literature and film, seawater is used to set the scene for nautical adventures, survival stories, and tales of the deep sea. Whether it is a scientist presenting a paper on ocean acidification or a surfer describing the perfect wave, the word seawater is essential for accurately describing the liquid that covers most of our planet. It is a word that bridges the gap between technical precision and everyday experience, making it a vital part of the English vocabulary for anyone interested in the natural world.

Academic Lectures: Today we will examine the vertical distribution of nutrients in seawater and how it affects primary productivity.

The documentary highlighted how the warming seawater is forcing many fish species to migrate toward the poles.

Maritime Operations: The captain ordered the crew to flush the pipes with seawater to prevent the buildup of freshwater organisms.

The news report warned that the storm surge could push seawater several miles inland, flooding low-lying areas.

Environmental Advocacy: We must reduce plastic waste to ensure that our seawater remains a healthy environment for future generations.

The spa offers a unique treatment where guests are submerged in heated seawater to improve circulation and skin health.

The fisherman noticed that the seawater was unusually murky after the heavy rains, affecting his daily catch.

The engineer explained that the seawater intake for the power plant was clogged with jellyfish, causing a temporary shutdown.

One of the most common mistakes learners make with the word seawater is confusing it with 'salt water.' While they are related, 'salt water' is a broader term that can describe any water containing salt, whereas seawater specifically refers to the water in the ocean. Using 'salt water' when you mean 'seawater' is usually acceptable in casual conversation, but in scientific or technical writing, 'seawater' is the more precise term. Another frequent error is treating seawater as a count noun in situations where it should be a mass noun. For example, saying 'I saw many seawaters' is incorrect; instead, you should say 'I saw a lot of seawater' or 'I saw different types of seawater.' The plural 'seawaters' is only used in very specific contexts, such as when referring to the distinct water bodies of different regions (e.g., 'the seawaters of the Atlantic and the Pacific'). Additionally, some people mistakenly use 'sea water' as two separate words. While this is not strictly incorrect, the compound form 'seawater' is much more common and preferred in modern English. Another mistake is using 'seawater' to describe water from a salty lake, like the Dead Sea or the Great Salt Lake. In these cases, 'brine' or 'hypersaline water' would be more accurate, as seawater has a specific, relatively consistent salinity range. Learners also sometimes struggle with the pronunciation, particularly the 'ea' sound, which should be a long 'e' as in 'see.' Mispronouncing it as 'say-water' can lead to confusion. Finally, there is a common misconception that seawater is just 'salty water.' In reality, seawater contains a vast array of minerals, gases, and organic matter that make it a much more complex substance than a simple salt-and-water mixture. When writing, avoid using 'seawater' as a synonym for 'ocean' or 'sea.' You can swim in the seawater, but you sail across the sea. The seawater is the substance, while the sea is the location. Keeping these distinctions in mind will help you use the word more accurately and professionally in your writing and speech.

Count vs. Mass Noun: Incorrect: We collected three seawaters for our experiment. Correct: We collected three samples of seawater for our experiment.

It is a common mistake to think that seawater is safe to drink if you are stranded at sea; in fact, it will only make you more thirsty.

Seawater vs. Salt Water: While salt water can be made in a kitchen, seawater is a naturally occurring substance with a unique chemical profile.

Don't confuse seawater with brine, which has a much higher concentration of salt than the average ocean.

Substance vs. Location: Incorrect: The ship sailed across the seawater. Correct: The ship sailed across the sea, through the choppy seawater.

Many people forget that seawater contains dissolved gases like oxygen, which is how fish are able to breathe underwater.

The term seawater should not be used to describe the water in a freshwater lake, even if it is very large.

Using the word seawater as a verb is incorrect; you cannot 'seawater' something, though you can 'salt' it.

When discussing the salty liquid of the oceans, several other words can be used depending on the level of formality and the specific context. 'Salt water' is the most common alternative and is often used interchangeably with seawater in everyday speech. However, 'salt water' is less specific, as it can refer to any water containing salt, including man-made solutions. 'Brine' is another related term, but it typically refers to water with a much higher concentration of salt than seawater, such as the water found in salt lakes or used in food preservation. In scientific contexts, you might encounter 'marine water,' which is a more formal term often used in ecology and oceanography to describe the water of the sea and its associated ecosystems. 'Ocean water' is another straightforward alternative that specifically emphasizes the vastness of the ocean basins. For more poetic or literary descriptions, writers might use 'the brine' or 'the deep' to refer to the seawater. 'The main' is an archaic term for the open ocean, though it is rarely used today. In the context of shipping and sailing, 'bilge water' refers to the seawater that collects in the bottom of a ship's hull, often mixed with oil and other contaminants. When comparing seawater to other types of water, 'freshwater' is the primary antonym, representing water with low salinity. 'Brackish water' is a term used for water that is saltier than freshwater but not as salty as seawater, typically found in estuaries where rivers meet the sea. Understanding these nuances allows you to choose the most appropriate word for your intended meaning. For example, if you are writing a scientific report on ocean salinity, 'seawater' is the best choice. If you are writing a poem about the sea, 'the brine' might add a more evocative touch. If you are describing the water in a tidal marsh, 'brackish water' would be the most accurate term. By mastering these alternatives, you can enhance the precision and variety of your vocabulary when discussing the world's aquatic environments.

Seawater vs. Salt Water: Seawater is the natural liquid of the ocean, while salt water is any water containing salt, including artificial mixtures.

Seawater vs. Brine: Seawater has a salinity of about 3.5%, whereas brine is a highly concentrated salt solution, often exceeding 5% salinity.

Seawater vs. Brackish Water: Seawater is fully saline, while brackish water is a mixture of fresh and salt water found in estuaries and coastal lagoons.

The poet spoke of the 'bitter brine' of the seawater, reflecting the harsh reality of life at sea.

While seawater is the standard for marine life, some species have adapted to the lower salinity of brackish water.

The engineer compared the properties of seawater with those of distilled water to demonstrate the effect of ions on conductivity.

The vast expanse of seawater was often referred to as 'the blue' by the sailors of old.

The desalination process removes the salt from seawater, leaving behind fresh water and a concentrated brine.

How Formal Is It?

재미있는 사실

Despite its name, seawater is not just water and salt; it contains almost every element found on Earth, including trace amounts of gold and silver.

발음 가이드

UK /ˈsiːˌwɔːtə(r)/

US /ˈsiːˌwɔːtər/

Primary stress is on the first syllable: SEA-water.

라임이 맞는 단어

free water tea water knee water key water plea water bee water tree water flee water

자주 하는 실수

Pronouncing 'sea' as 'say'.
Putting the stress on the second syllable: sea-WA-ter.
Using a short 'a' sound in 'water' like in 'hat'.
Merging the two words into 'seawater' but pronouncing them with a pause.
Mispronouncing the 'w' as a 'v' sound in some accents.

난이도

독해 2/5

The word is easy to recognize as a compound of two common words.

쓰기 3/5

Learners must remember it is usually one word and an uncountable noun.

말하기 2/5

Pronunciation is straightforward for most learners.

듣기 2/5

Easily distinguishable in conversation due to its clear syllables.

다음에 무엇을 배울까

선수 학습

sea water salt ocean blue

다음에 배울 것

salinity desalination brackish marine aquatic

고급

thermohaline acidification stratification electrolyte stoichiometry

알아야 할 문법

Compound Nouns

Seawater is a closed compound noun, meaning it is written as one word without a space or hyphen.

Mass Nouns

Seawater is uncountable, so we use 'much' or 'a lot of' instead of 'many'.

Articles with Natural Features

We usually use 'the' when referring to a specific body of seawater (e.g., 'The seawater in this bay is shallow').

Adjectives before Nouns

Descriptive adjectives like 'salty' or 'cold' always come before 'seawater'.

Possessive Forms

Use 'seawater's' to show possession, such as 'seawater's chemical makeup'.

무료 가입하고 전체 설명 읽기

수준별 예문

The seawater is very blue today.

L'eau de mer est très bleue aujourd'hui.

Simple subject-verb-adjective structure.

I like to play in the seawater.

J'aime jouer dans l'eau de mer.

Use of 'in' to indicate location within the water.

Seawater is salty.

L'eau de mer est salée.

Basic descriptive sentence.

Fish live in the seawater.

Les poissons vivent dans l'eau de mer.

Present simple for a general fact.

Do not drink the seawater.

Ne buvez pas l'eau de mer.

Imperative form for a warning.

The seawater is cold in winter.

L'eau de mer est froide en hiver.

Time expression 'in winter'.

Look at the seawater on the sand.

Regardez l'eau de mer sur le sable.

Preposition 'on' for surface contact.

Seawater is everywhere at the beach.

L'eau de mer est partout à la plage.

Adverb of place 'everywhere'.

The seawater feels warm in the summer.

L'eau de mer semble chaude en été.

Linking verb 'feels' with an adjective.

Boats float on the seawater.

Les bateaux flottent sur l'eau de mer.

Present simple for a general truth.

The seawater has a lot of salt.

L'eau de mer contient beaucoup de sel.

Quantifier 'a lot of' with a non-count noun.

We can see shells in the seawater.

On peut voir des coquillages dans l'eau de mer.

Modal verb 'can' for possibility.

The seawater moved the sand away.

L'eau de mer a emporté le sable.

Past simple tense.

Is the seawater clean here?

L'eau de mer est-elle propre ici ?

Interrogative sentence structure.

The seawater is deeper far from the shore.

L'eau de mer est plus profonde loin du rivage.

Comparative adjective 'deeper'.

Seawater can be dangerous during a storm.

L'eau de mer peut être dangereuse pendant une tempête.

Modal 'can' expressing potential danger.

The salinity of seawater varies in different parts of the world.

La salinité de l'eau de mer varie dans différentes parties du monde.

Subject-verb agreement with a singular subject.

Desalination plants turn seawater into drinking water.

Les usines de dessalement transforment l'eau de mer en eau potable.

Verb 'turn into' for transformation.

The seawater was so clear that we could see the coral reef below.

L'eau de mer était si claire que nous pouvions voir le récif de corail en dessous.

Result clause with 'so... that'.

Many marine animals depend on seawater for their survival.

De nombreux animaux marins dépendent de l'eau de mer pour leur survie.

Prepositional verb 'depend on'.

The seawater's temperature has been rising steadily over the years.

La température de l'eau de mer a augmenté régulièrement au fil des ans.

Present perfect continuous for an ongoing action.

Corrosion caused by seawater is a major problem for coastal bridges.

La corrosion causée par l'eau de mer est un problème majeur pour les ponts côtiers.

Passive participle 'caused by' used as an adjective.

Scientists are studying how seawater absorbs carbon dioxide.

Les scientifiques étudient comment l'eau de mer absorbe le dioxyde de carbone.

Indirect question starting with 'how'.

The seawater was rough, making it difficult for the boat to dock.

L'eau de mer était agitée, ce qui rendait difficile l'accostage du bateau.

Participial phrase 'making it difficult'.

The unique chemical composition of seawater allows it to support a vast array of life forms.

La composition chimique unique de l'eau de mer lui permet de soutenir une vaste gamme de formes de vie.

Infinitive phrase 'to support' following 'allows'.

Seawater intrusion into freshwater aquifers is a serious threat to agriculture in coastal regions.

L'intrusion d'eau de mer dans les aquifères d'eau douce est une menace sérieie pour l'agriculture dans les régions côtières.

Compound noun 'seawater intrusion'.

The density of seawater is primarily determined by its temperature and salinity levels.

La densité de l'eau de mer est principalement déterminée par sa température et ses niveaux de salinité.

Passive voice 'is determined by'.

Large amounts of seawater are used in the cooling systems of coastal power plants.

De grandes quantités d'eau de mer sont utilisées dans les systèmes de refroidissement des centrales électriques côtières.

Passive voice with a plural subject.

Ocean acidification occurs when seawater reacts with atmospheric carbon dioxide.

L'acidification des océans se produit lorsque l'eau de mer réagit avec le dioxyde de carbone atmosphérique.

Temporal clause starting with 'when'.

The thermohaline circulation is driven by differences in seawater density.

La circulation thermohaline est entraînée par des différences de densité de l'eau de mer.

Technical term 'thermohaline circulation'.

The seawater's ability to hold heat helps to regulate the Earth's climate.

La capacité de l'eau de mer à retenir la chaleur aide à réguler le climat de la Terre.

Possessive form 'seawater's'.

Researchers measured the pH of the seawater to assess the health of the ecosystem.

Les chercheurs ont mesuré le pH de l'eau de mer pour évaluer la santé de l'écosystème.

Purpose clause with 'to assess'.

The intricate buffering capacity of seawater mitigates the impact of rising carbon dioxide levels.

La capacité de tampon complexe de l'eau de mer atténue l'impact de l'augmentation des niveaux de dioxyde de carbone.

Complex noun phrase 'intricate buffering capacity'.

Variations in seawater salinity can significantly alter the speed of sound underwater.

Les variations de la salinité de l'eau de mer peuvent modifier considérablement la vitesse du son sous l'eau.

Adverb 'significantly' modifying the verb 'alter'.

The vertical stratification of seawater prevents the mixing of nutrient-rich deep waters with the surface.

La stratification verticale de l'eau de mer empêche le mélange des eaux profondes riches en nutriments avec la surface.

Gerund 'mixing' as the object of 'prevents'.

Seawater's high heat capacity makes it a crucial component in the global energy balance.

La capacité thermique élevée de l'eau de mer en fait un composant crucial de l'équilibre énergétique mondial.

Object complement 'a crucial component'.

The corrosive nature of seawater necessitates the use of specialized alloys in marine engineering.

La nature corrosive de l'eau de mer nécessite l'utilisation d'alliages spécialisés en génie maritime.

Formal verb 'necessitates'.

Anomalies in seawater temperature are often precursors to major climatic events like El Niño.

Les anomalies de la température de l'eau de mer sont souvent des précurseurs d'événements climatiques majeurs comme El Niño.

Noun 'precursors' followed by a prepositional phrase.

The saturation state of seawater with respect to aragonite is declining due to acidification.

L'état de saturation de l'eau de mer par rapport à l'aragonite diminue en raison de l'acidification.

Prepositional phrase 'with respect to'.

Seawater's role as a carbon sink is being compromised by the rapid rate of industrial emissions.

Le rôle de l'eau de mer en tant que puits de carbone est compromis par le rythme rapide des émissions industrielles.

Present continuous passive 'is being compromised'.

The thermodynamic equilibrium of seawater is a delicate balance of chemical potentials and ionic activities.

L'équilibre thermodynamique de l'eau de mer est un équilibre délicat de potentiels chimiques et d'activités ioniques.

Highly technical terminology.

Seawater's opacity to electromagnetic radiation necessitates the use of acoustic methods for deep-sea exploration.

L'opacité de l'eau de mer au rayonnement électromagnétique nécessite l'utilisation de méthodes acoustiques pour l'exploration des grands fonds.

Abstract noun 'opacity' as the subject.

The residence time of various trace elements in seawater provides insights into long-term geological cycles.

Le temps de résidence de divers éléments traces dans l'eau de mer donne un aperçu des cycles géologiques à long terme.

Technical concept 'residence time'.

Anthropogenic perturbations to seawater chemistry are occurring at a rate unprecedented in the geological record.

Les perturbations anthropiques de la chimie de l'eau de mer se produisent à un rythme sans précédent dans les archives géologiques.

Adjective 'unprecedented' modifying 'rate'.

The stoichiometric ratios of nutrients in seawater are fundamental to understanding marine primary productivity.

Les rapports stœchiométriques des nutriments dans l'eau de mer sont fondamentaux pour comprendre la productivité primaire marine.

Technical term 'stoichiometric ratios'.

Seawater serves as the quintessential solvent, facilitating the myriad biochemical reactions that sustain life.

L'eau de mer sert de solvant quintessentiel, facilitant la myriade de réactions biochimiques qui soutiennent la vie.

Appositive phrase 'the quintessential solvent'.

The non-linear response of seawater density to temperature changes complicates climate modeling efforts.

La réponse non linéaire de la densité de l'eau de mer aux changements de température complique les efforts de modélisation climatique.

Compound adjective 'non-linear'.

Seawater's role in the global conveyor belt is a testament to the interconnectedness of the Earth's systems.

Le rôle de l'eau de mer dans la ceinture de convection mondiale est un témoignage de l'interconnexion des systèmes terrestres.

Metaphorical use of 'testament'.

자주 쓰는 조합

cold seawater

warm seawater

polluted seawater

filtered seawater

clear seawater

deep seawater

shallow seawater

surface seawater

untreated seawater

salty seawater

자주 쓰는 구문

seawater desalination

— The process of removing salt and minerals from seawater to produce fresh water. It is a critical technology for arid regions.

The city invested in a seawater desalination plant to combat the drought.

seawater intrusion

— The movement of saline water into freshwater aquifers. This often happens in coastal areas due to groundwater pumping.

Seawater intrusion has made the local well water undrinkable.

seawater cooling

— Using seawater to absorb heat from industrial processes or power plants. It is an efficient way to manage thermal energy.

The data center uses seawater cooling to reduce its electricity consumption.

seawater temperature

— The measurement of how hot or cold the water in the ocean is. It is a key variable in climate science.

Rising seawater temperatures are affecting the migration patterns of whales.

seawater salinity

— The concentration of dissolved salts in seawater. It affects the water's density and biological properties.

The seawater salinity in the Mediterranean is higher than in the Atlantic.

seawater greenhouse

— A greenhouse that uses seawater to provide both humidity and cooling for crops. It is an innovative agricultural solution.

The seawater greenhouse allows farmers to grow tomatoes in the desert.

seawater spray

— Fine droplets of seawater blown into the air by wind or waves. It can cause salt buildup on coastal structures.

The windows were covered in a thin film of dried seawater spray.

seawater samples

— Small amounts of seawater collected for scientific analysis. They are used to study ocean chemistry and biology.

The researchers collected seawater samples at various depths.

seawater flooding

— When seawater overflows onto land, often during a storm or high tide. It can cause significant damage to infrastructure.

The coastal town is preparing for potential seawater flooding this weekend.

seawater density

— The mass of seawater per unit volume. It is determined by temperature and salinity.

Changes in seawater density drive the movement of deep ocean currents.

자주 혼동되는 단어

seawater vs salt water

Salt water is a general term for any water with salt; seawater is specifically from the ocean.

seawater vs freshwater

Freshwater has very little salt and is found in rivers and lakes, the opposite of seawater.

seawater vs brine

Brine is much saltier than seawater and is often used in industrial or culinary contexts.

관용어 및 표현

"like a fish out of seawater"

— Feeling very uncomfortable or out of place in a particular situation. It is a variation of the more common 'fish out of water.'

At the formal gala, the rugged sailor felt like a fish out of seawater.

informal

"seawater in the veins"

— Having a natural talent for or a deep ancestral connection to the sea and sailing. It suggests a person is a 'born sailor.'

With generations of captains in his family, he clearly has seawater in his veins.

literary

"worth one's salt in seawater"

— Being competent and deserving of respect in a maritime or challenging environment. A play on the idiom 'worth one's salt.'

Any navigator worth his salt in seawater knows how to read the stars.

informal

"treading seawater"

— To be in a state of activity but making no progress; just barely managing to stay afloat in a difficult situation.

The company has been treading seawater for months, waiting for the market to improve.

neutral

"a drop in the seawater"

— A very small and insignificant amount compared to what is needed or what exists. A variation of 'a drop in the ocean.'

The small donation was just a drop in the seawater compared to the total cost of the project.

neutral

"to take on seawater"

— To be overwhelmed by problems or to be in a failing state, like a ship that is sinking.

After the scandal, the politician's campaign began to take on seawater.

informal

"clear as seawater"

— Something that is very easy to see or understand, though sometimes used ironically if the water is murky.

The instructions were as clear as seawater, so we finished the task in no time.

informal

"between the devil and the deep seawater"

— To be in a difficult situation where there are two equally unpleasant choices. A variation of the classic idiom.

He was caught between the devil and the deep seawater when both jobs were offered at once.

literary

"to pour seawater into the ocean"

— To do something that is completely unnecessary or redundant because there is already plenty of it.

Giving him more advice is like pouring seawater into the ocean; he already knows everything.

informal

"the seawater is calling"

— A strong desire to go to the beach, go sailing, or return to the ocean.

I've been in the city too long; the seawater is calling my name.

neutral

혼동하기 쉬운

seawater vs sea water

It is the same meaning but written as two words.

Seawater (one word) is the standard modern spelling, while sea water (two words) is older or less common.

Most scientists write 'seawater' as a single word in their reports.

seawater vs ocean

Both refer to the same place.

The ocean is the place or the body of water; seawater is the actual liquid substance itself.

The ocean is vast, and it is filled with salty seawater.

seawater vs brine

Both are salty water.

Brine has a much higher salt concentration than seawater and is often man-made or found in salt lakes.

The seawater was salty, but the brine in the salt pan was almost solid.

seawater vs brackish

Both are types of salty water.

Brackish water is a mix of fresh and salt water, usually found where rivers meet the sea, and is less salty than seawater.

The water in the estuary is brackish, not pure seawater.

seawater vs saline

Both relate to salt in water.

Saline is an adjective meaning 'containing salt' or a noun for a medical salt solution; seawater is a specific natural substance.

The doctor used a saline solution, which is different from natural seawater.

문장 패턴

The seawater is [adjective].

The seawater is blue.

I like to [verb] in the seawater.

I like to swim in the seawater.

[Noun] is caused by seawater.

Corrosion is caused by seawater.

The [noun] of seawater is [adjective].

The salinity of seawater is high.

Seawater serves as a [noun] for [noun].

Seawater serves as a habitat for many species.

The [adjective] nature of seawater [verb] the [noun].

The corrosive nature of seawater damages the equipment.

There is [quantity] of seawater.

There is a lot of seawater.

Seawater is used for [gerund].

Seawater is used for cooling.

어휘 가족

명사

sea

water

seawater

seaside

seafloor

seascape

동사

water

seawater-wash (rare)

desalinate

형용사

seawater-resistant

marine

saline

watery

oceanic

사용법

frequency

Common in coastal regions, scientific literature, and environmental news.

자주 하는 실수

Using 'many seawaters' to describe a lot of water. → Using 'a lot of seawater' or 'vast amounts of seawater.'
Seawater is an uncountable mass noun. You cannot count individual units of it unless you use a container word like 'bottles' or 'samples.'
Writing 'sea water' as two separate words in a formal report. → Writing 'seawater' as one single word.
In modern English, especially in scientific and technical contexts, the compound form 'seawater' is the preferred and standard spelling.
Confusing 'seawater' with 'freshwater' when describing a lake. → Using 'freshwater' for most lakes and 'seawater' only for the ocean.
Lakes are typically fresh water. Using 'seawater' for a lake is factually incorrect unless it is a specifically saline lake, and even then, 'salt water' is often better.
Saying 'the seawater is drinking' instead of 'the seawater is drinkable' (or not). → Saying 'the seawater is not drinkable' or 'you cannot drink the seawater.'
Seawater cannot perform the action of drinking. You must use the adjective 'drinkable' or the passive voice to describe its suitability for consumption.
Using 'seawater' to refer to the beach itself. → Using 'the beach' or 'the shore' for the location and 'seawater' for the liquid.
Seawater is the substance, not the place. You walk on the beach and swim in the seawater.

팁

One Word, Not Two

Always remember to write 'seawater' as a single word. While 'sea water' is sometimes seen, the compound form is much more standard in professional and academic writing. This helps your writing look more polished and modern.

Treat as Uncountable

Seawater is a mass noun, so you should use singular verbs and quantifiers like 'some' or 'much.' If you need to refer to a specific quantity, use a phrase like 'a liter of seawater' or 'three samples of seawater' to be grammatically correct.

Be Specific

Use 'seawater' when you are talking about the physical substance. If you are talking about the location, use 'the sea' or 'the ocean.' This distinction adds clarity to your descriptions and shows a better command of the language.

Mention Salinity

When discussing seawater in a scientific context, it is often helpful to mention its salinity. This shows you understand the defining characteristic of the substance and provides important detail for your readers or listeners.

Warning about Drinking

In any survival or safety-related writing, always emphasize that seawater is not potable. This is a critical piece of information that can save lives and is a common topic in discussions about the ocean.

Use Sensory Details

When writing about seawater, try to include sensory details like the 'salty tang' in the air, the 'stinging' sensation in the eyes, or the 'crashing' sound of the waves. This makes your writing more engaging and vivid for the reader.

Environmental Awareness

Using terms like 'seawater warming' or 'seawater acidification' can help you participate in important global conversations about the environment. These are key phrases in modern news and scientific discussions.

Double Check 'EA'

Don't forget the 'a' in 'sea.' It's a common spelling mistake to write 'sewater' or 'seewater.' Thinking of the word 'sea' separately before joining it to 'water' can help you remember the correct spelling.

Poetic Alternatives

In creative writing, don't be afraid to use synonyms like 'the brine' or 'the deep' to avoid repeating 'seawater' too many times. This adds variety and a more literary tone to your work.

Connect to Related Words

Link 'seawater' to other marine vocabulary like 'tide,' 'current,' and 'shore.' Learning words in thematic groups is a very effective way to build and retain a larger vocabulary.

암기하기

기억법

Think of 'SEA' + 'WATER'. You 'SEE' the 'SEA' and its 'WATER'. It's the salty liquid that fills the oceans.

시각적 연상

Imagine a bright blue wave crashing onto a sandy beach, with white foam and the smell of salt in the air. That liquid is seawater.

Word Web

Ocean Salt Fish Waves Blue Beach Ship Tide

챌린지

Try to write three sentences about a trip to the beach using the word 'seawater' in each one, focusing on a different sense (sight, smell, touch).

어원

The word 'seawater' is a compound noun formed from the Old English words 'sæ' (meaning sea) and 'wæter' (meaning water). Both components have Proto-Germanic roots, with 'sea' coming from '*saiwiz' and 'water' from '*watōr'. The combination has been used in English for centuries to specifically denote the saline water of the oceans.

원래 의미: The original meaning was literally 'water of the sea,' used to distinguish it from the fresh water of inland sources.

Germanic (English)

문화적 맥락

Be mindful when discussing seawater in the context of rising sea levels, as this is a sensitive and threatening issue for many low-lying island nations.

In English-speaking countries, seawater is often associated with summer vacations, surfing culture, and the historical importance of the Royal Navy or the US Navy.

The Rime of the Ancient Mariner: 'Water, water, everywhere, nor any drop to drink.' The Old Man and the Sea by Ernest Hemingway. Finding Nemo: A film that brings the world of seawater to life for children.

실생활에서 연습하기

실제 사용 상황

At the Beach

The seawater is warm.
Watch out for the seawater spray.
The seawater is very clear today.
Don't get seawater on your phone.

Scientific Research

Analyze the seawater sample.
Measure the seawater temperature.
The seawater pH is dropping.
Study the seawater currents.

Maritime Industry

The hull is resistant to seawater.
Flush the system with seawater.
The seawater pump is broken.
Check the seawater intake.

Environmental Issues

Polluted seawater is a problem.
Rising seawater levels.
Seawater warming is dangerous.
Protect the seawater quality.

Cooking/Food

Boil the lobster in seawater.
The taste of fresh seawater.
Making salt from seawater.
Seawater-cured fish.

대화 시작하기

"Have you ever accidentally tasted seawater while swimming? It's incredibly salty, isn't it?"

"Do you prefer the temperature of the seawater in the summer or do you like a cold dip in the winter?"

"What do you think is the biggest threat to the quality of our seawater today?"

"Have you ever seen seawater that was a really unusual color, like bright turquoise or dark grey?"

"If you were stranded on an island, how would you try to turn seawater into drinking water?"

일기 주제

Describe the first time you felt seawater on your skin. How did it feel and what was the environment like?

Write about the importance of seawater to the planet's climate. Why should we be worried about it warming up?

Imagine you are a marine biologist. Describe a day spent collecting and analyzing seawater samples from the deep ocean.

Reflect on a famous story or movie where seawater plays a major role. How does the water affect the characters?

Write a poem about the movement and sound of seawater as it hits the shore during a storm.

자주 묻는 질문

10 질문

No, you should never drink seawater. The high salt content in seawater actually draws water out of your body's cells through osmosis, making you even more dehydrated than before. This can lead to organ failure and death quite quickly. It is much safer to wait for fresh water or use a desalination kit if available. Even small amounts can cause stomach upset and further fluid loss.

Seawater is salty because of the rocks on land. As rain falls, it is slightly acidic and erodes the rocks, carrying minerals and salts into rivers. These rivers eventually flow into the ocean, where the salts accumulate over millions of years. When seawater evaporates to form clouds, the salt stays behind, making the ocean progressively saltier over geological time. Volcanic activity on the seafloor also contributes minerals to the seawater.

No, the composition of seawater can vary depending on the location. For example, seawater in the tropical regions is often saltier because high temperatures cause more evaporation. In contrast, seawater near the poles or near large river mouths is often less salty because of melting ice or freshwater runoff. However, the ratio of the major salts in seawater remains remarkably consistent throughout the world's oceans.

On average, seawater has a salinity of about 3.5%. This means that in every 1,000 grams of seawater, there are about 35 grams of dissolved salts. If you were to remove all the salt from the oceans and spread it over the Earth's land surface, it would form a layer more than 150 meters thick. The most abundant salt is sodium chloride, but there are many others as well.

Yes, seawater can freeze, but it does so at a lower temperature than fresh water. While fresh water freezes at 0 degrees Celsius (32 degrees Fahrenheit), average seawater freezes at about -2 degrees Celsius (28.4 degrees Fahrenheit) because of the dissolved salts. When seawater freezes, the salt is often pushed out of the ice crystals, creating very salty and dense water underneath the ice.

Seawater appears blue because it absorbs colors in the red part of the light spectrum and reflects colors in the blue part. This effect is similar to why the sky is blue. The deeper the water, the more light is absorbed, and the deeper the blue color becomes. Sometimes seawater can look green or brown if it contains a lot of algae, plankton, or sediment.

Seawater desalination is the process of removing salt and other minerals from seawater to create fresh water that is safe for drinking and irrigation. The two most common methods are distillation, which involves boiling the water and collecting the steam, and reverse osmosis, which uses high pressure to push the water through a fine membrane. It is an important but energy-intensive way to provide water in dry areas.

Many people believe that seawater has healing properties for the skin due to its high mineral content, such as magnesium, calcium, and potassium. It can help to exfoliate dead skin cells and may improve certain conditions like eczema or psoriasis. However, the salt can also be very drying, so it is important to rinse with fresh water after swimming and apply moisturizer to prevent irritation.

Seawater plays a dual role in climate change. On one hand, the oceans absorb about 90% of the excess heat generated by global warming, which helps to slow down the warming of the atmosphere. On the other hand, this causes the seawater to expand and sea levels to rise. Additionally, the oceans absorb carbon dioxide, which leads to ocean acidification, threatening marine life and ecosystems.

Seawater is home to an incredible variety of life, from microscopic bacteria and plankton to the largest animal on Earth, the blue whale. It supports complex ecosystems like coral reefs, kelp forests, and the mysterious creatures of the deep-sea trenches. Every organism in the ocean has adapted to the specific salinity and pressure of seawater, making it one of the most diverse habitats on our planet.

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