At the A1 level, you should learn 'algas marinhas' as a basic noun related to the sea and food. Think of it as 'seaweed'. You might use it to describe what you see at the beach: 'Eu vejo algas marinhas' (I see seaweed). You might also encounter it if you like Japanese food, as it is used to wrap sushi. At this stage, focus on the fact that it is a feminine word and usually plural. Don't worry about the different types; just remember it as the green or brown plants in the ocean. It's a useful word for simple descriptions of nature or your favorite foods. You can practice saying 'As algas são verdes' (The seaweed is green) to get used to the feminine plural agreement.
At the A2 level, you can start using 'algas marinhas' in slightly more complex sentences, such as those involving likes, dislikes, and locations. You might say, 'Eu não gosto de nadar quando há muitas algas marinhas' (I don't like to swim when there is a lot of seaweed). You should also be able to use it when shopping or at a restaurant, for example, 'Esta salada tem algas marinhas?' (Does this salad have seaweed?). You are now learning to combine the noun with common adjectives like 'frescas' (fresh) or 'secas' (dry). It's also a good time to notice that 'marinhas' comes from 'mar' (sea), which helps you build connections between related words in Portuguese.
At the B1 level, you should be comfortable using 'algas marinhas' in discussions about the environment, health, and travel. You might explain why they are important for the planet or describe a specific experience you had while diving. For example, 'As algas marinhas produzem muito oxigênio para a atmosfera' (Seaweed produces a lot of oxygen for the atmosphere). You can also talk about health benefits: 'Dizem que as algas marinhas são muito nutritivas e ricas em minerais' (They say seaweed is very nutritious and rich in minerals). At this level, you should correctly manage the agreement between the noun and its modifiers in more varied tenses, like the past or the future.
At the B2 level, you can use 'algas marinhas' in technical or professional contexts, such as biology, gastronomy, or the cosmetic industry. You might discuss the 'sustentabilidade' (sustainability) of harvesting seaweed or its use in 'biocombustíveis' (biofuels). You should be able to distinguish between different contexts of the word, such as its role in 'ecossistemas marinhos' versus its industrial applications. For instance, 'A exploração comercial de algas marinhas deve ser regulamentada para proteger a biodiversidade' (The commercial exploitation of seaweed must be regulated to protect biodiversity). You should also be familiar with related terms like 'fitoplâncton' or 'sargaço' and know when to use them instead of the general term.
At the C1 level, your use of 'algas marinhas' should be nuanced and precise. You can use the term in academic or literary discussions, perhaps using it metaphorically or in detailed scientific descriptions. You might analyze the impact of 'eutrofização' (eutrophication) on 'proliferações de algas' (algal blooms). Your vocabulary should include specific types and their properties, such as 'algas calcárias' or 'algas pardas'. You can engage in complex debates about the 'economia azul' and the role of 'algas marinhas' in carbon sequestration. For example, 'A complexa interação entre as correntes oceânicas e as populações de algas marinhas determina a resiliência do ecossistema costeiro' (The complex interaction between ocean currents and seaweed populations determines the resilience of the coastal ecosystem).
At the C2 level, you have a complete mastery of 'algas marinhas' and its place in the Portuguese language. You can interpret and use the term in highly specialized scientific papers, legal documents regarding maritime resources, or classical literature. You understand the subtle cultural connotations, such as the historical use of 'moliço' in the Aveiro region of Portugal. You can write or speak about 'algas marinhas' with the fluency of a native expert, using advanced rhetorical devices. Your understanding extends to the etymological roots and the evolution of the term within the language. You can effortlessly discuss the 'bioquímica das algas' or their role in 'paleoceanografia' with sophisticated vocabulary and perfect grammatical structure.

algas marinhas در ۳۰ ثانیه

  • Algas marinhas are marine organisms that perform photosynthesis, essential for oxygen production and the global marine food chain.
  • Used extensively in culinary traditions, especially Asian cuisine, and as ingredients in cosmetics and sustainable industrial products.
  • The term is feminine and plural (as algas marinhas), requiring grammatical agreement for all associated adjectives and articles.
  • They can be found in various forms, from microscopic phytoplankton to large kelp, and are vital indicators of ocean health.

The term algas marinhas is a compound noun in Portuguese that translates literally to "marine algae" or, more commonly in everyday English, "seaweed." It refers to a diverse group of photosynthetic organisms that inhabit salt-water environments, ranging from microscopic phytoplankton to massive kelp forests. In a linguistic context, the word is feminine and plural, reflecting the fact that we rarely discuss a single strand of seaweed in isolation; they are almost always encountered as a collective presence in the ocean or on the shore.

Biological Classification
In Portuguese, 'algas' covers everything from green (clorofíceas) to red (rodofíceas) and brown (fofíceas) varieties. The adjective 'marinhas' specifies their habitat, distinguishing them from freshwater algae found in lakes or rivers.

You will encounter this term in three primary contexts in the Portuguese-speaking world: ecological discussions, culinary experiences, and cosmetic or pharmaceutical products. From an ecological standpoint, algas marinhas are celebrated as the 'lungs of the world' because they produce a significant portion of the Earth's oxygen. If you are walking along the beautiful beaches of the Algarve in Portugal or the coast of Bahia in Brazil, you might see them washed up on the sand after a storm, a sight that locals might describe with a mix of aesthetic appreciation and occasional annoyance if the accumulation is heavy.

As algas marinhas são essenciais para a produção de oxigênio no nosso planeta.

Culinary Usage
With the global popularity of Japanese cuisine, 'algas marinhas' has become a staple word on menus across Brazil and Portugal. Whether referring to the 'nori' used in sushi or 'wakame' in salads, the Portuguese term remains the standard way to categorize these edible sea vegetables.

Culturally, there is a growing interest in the sustainable harvesting of these organisms. In certain coastal regions of Portugal, there is a long-standing tradition of using 'moliço' (a mix of algae and aquatic plants) as fertilizer for farmland. This historical connection gives the term a rustic, traditional undertone in specific dialects. Conversely, in modern urban centers like São Paulo or Lisbon, the term might appear in high-end skincare advertisements, highlighting the 'propriedades rejuvenescedoras' (rejuvenating properties) of marine extracts.

Muitos cosméticos utilizam extratos de algas marinhas para hidratar a pele de forma natural.

Environmental Impact
Environmentalists often use 'algas marinhas' when discussing 'sequestro de carbono' (carbon sequestration). They are vital tools in the fight against climate change due to their rapid growth and ability to absorb CO2.

O cultivo de algas marinhas pode ajudar a reduzir o aquecimento global.

As crianças ficaram fascinadas com as algas marinhas presas nas rochas da praia.

O mergulhador se viu cercado por uma densa floresta de algas marinhas.

Using algas marinhas correctly requires an understanding of its plural nature and its role as a subject or object in various sentence structures. Because it is a feminine plural noun, any adjectives or articles associated with it must also be feminine and plural. For example, instead of saying 'o alga' or 'alga marinho', you must say as algas marinhas. This agreement is the cornerstone of grammatical accuracy in Portuguese.

Subject-Verb Agreement
When 'algas marinhas' is the subject, the verb must be in the third-person plural. 'As algas marinhas crescem rápido' (Seaweed grows fast). Note that while English often uses 'seaweed' as an uncountable mass noun, Portuguese treats 'algas' as a countable plural noun in most general contexts.

In descriptive sentences, you will often find algas marinhas paired with verbs of state or location. For instance, if you are at the beach, you might say: 'A areia está cheia de algas marinhas' (The sand is full of seaweed). Here, 'cheia de' (full of) agrees with 'areia' (sand), but 'algas marinhas' remains plural to indicate the abundance of individual plants or pieces.

Nós compramos algas marinhas desidratadas para fazer uma sopa nutritiva.

Positioning Adjectives
Adjectives typically follow the noun. If you want to describe seaweed as green or slimy, you would say 'algas marinhas verdes' or 'algas marinhas viscosas'. The word 'marinhas' is itself an adjective modifying 'algas', creating a fixed compound term.

When discussing dietary habits, algas marinhas often appears after verbs like 'comer' (to eat), 'consumir' (to consume), or 'cozinhar' (to cook). For example: 'Muitas pessoas no Japão consomem algas marinhas diariamente' (Many people in Japan consume seaweed daily). If you are referring to the health benefits, you might say: 'As algas marinhas são ricas em iodo' (Seaweed is rich in iodine).

Você já provou aquele lanche feito de algas marinhas crocantes?

Prepositional Use
Commonly used with 'de' (of/from) to indicate composition or origin. 'Uma máscara de algas marinhas' (A seaweed mask) or 'um extrato de algas marinhas' (a seaweed extract).

As algas marinhas flutuavam suavemente nas ondas do mar.

O biólogo marinho estuda o crescimento das algas marinhas no recife.

É possível encontrar diversos tipos de algas marinhas nesta região costeira.

In the Lusophone world, the term algas marinhas is far from being a purely scientific or niche word. You will encounter it in surprisingly varied settings, from the casual chatter of beachgoers to the sophisticated marketing of health food stores. Understanding these environments will help you grasp the word's practical nuances.

At the Beach (Na Praia)
Families often use the term when exploring tide pools or warning children about slippery rocks. 'Cuidado com as algas marinhas, elas escorregam!' (Watch out for the seaweed, they are slippery!). It's a fundamental part of the vocabulary for any summer vacation.

In the culinary world, particularly in Brazil—which hosts the largest Japanese community outside of Japan—algas marinhas is a term used by waiters, chefs, and foodies alike. When you go to a 'rodízio de sushi' (all-you-can-eat sushi) in São Paulo, you might ask about the quality of the 'algas' used to wrap the rolls. In health-conscious circles, 'chips de algas marinhas' have become a popular alternative to potato chips, frequently mentioned in fitness blogs and wellness podcasts.

O restaurante serve uma salada deliciosa com algas marinhas e gergelim.

In the Media and Education
Documentaries on RTP (Portugal) or Globo (Brazil) regarding the environment frequently use 'algas marinhas' to explain marine biodiversity. Schools teach it as a primary producer in the food chain ('cadeia alimentar').

Furthermore, in the context of sustainability and 'economia azul' (blue economy), algas marinhas are highlighted as a future resource for biofuels and biodegradable plastics. You might hear this in news segments about innovation or technological startups in coastal cities like Porto or Florianópolis. The term carries a sense of natural power and untapped potential in these discussions.

A reportagem explicou como as algas marinhas podem ser transformadas em combustível.

Na aula de biologia, aprendemos sobre o papel das algas marinhas no ecossistema.

O guia turístico mostrou as algas marinhas coloridas durante o mergulho.

No mercado de produtos naturais, as algas marinhas são vendidas como suplemento.

Learning to use algas marinhas correctly involves navigating a few linguistic pitfalls. The most frequent errors made by English speakers stem from gender disagreement, incorrect pluralization, and confusion with similar-sounding words in Portuguese. Let's break down these mistakes to ensure your Portuguese sounds natural and accurate.

Gender Confusion
The noun 'alga' is feminine. A common mistake is using the masculine article 'o' (e.g., 'o alga'). You must always use 'a' or 'as'. Consequently, the adjective 'marinho' must also be feminine: 'marinha' or 'marinhas'. Saying 'algas marinhos' is a tell-tale sign of a learner struggling with agreement.

Another mistake involves treating algas marinhas as an uncountable noun, as we often do with 'seaweed' in English. In English, we might say 'There is a lot of seaweed on the beach.' In Portuguese, while you can say 'Há muita alga,' it is much more common and natural to use the plural: 'Há muitas algas marinhas.' Using the singular when referring to a general mass of seaweed can sometimes sound slightly off or overly technical.

Errado: Eu comprei um alga marinho. Correto: Eu comprei algas marinhas.

Pronunciation Pitfalls
The 'L' in 'algas' is a velarized 'L' (like in 'feel') in Portugal, but in most Brazilian dialects, it sounds like a 'W' (/aw-gas/). Beginners often try to pronounce it as a clear 'L' as in 'light', which can sound non-native. Aim for the 'W' sound in Brazil for a more authentic accent.

Contextual confusion also occurs when learners use 'algas' to refer to any plant in the water. Remember, algas marinhas specifically refers to marine algae. If you are talking about plants in a lake or a river, you would say 'algas de água doce' or simply 'plantas aquáticas'. Using 'marinhas' in a freshwater context is a factual error that can confuse your listeners.

Errado: As algas marinhas do rio são verdes. Correto: As algas de água doce do rio são verdes.

Spelling Errors
Don't forget the 'h' in 'marinhas'. It's not 'marinas' (which refers to boat docks/marinas). The 'nh' sound is a nasal palatal, similar to the 'ny' in 'canyon'.

As algas marinhas são diferentes das plantas que crescem na terra.

Não confunda o cheiro de algas marinhas com o cheiro de peixe fresco.

Muitos turistas evitam nadar onde há muitas algas marinhas.

While algas marinhas is the standard term for seaweed, the Portuguese language offers several related words and specific alternatives depending on the context—be it scientific, culinary, or descriptive. Knowing these will enrich your vocabulary and allow for more precise communication.

Plâncton
Often mentioned alongside algae, 'plâncton' refers to the microscopic organisms (including microalgae) drifting in the water. While 'algas marinhas' can be large (macroalgas), 'fitoplâncton' is the specific term for the microscopic photosynthetic ones.

In a culinary setting, you might encounter specific names for different types of algas marinhas. Instead of the general term, a menu might list 'Nori' (the dried sheets for sushi), 'Kombu' (used in broths), or 'Agar-agar' (a gelatinous substance derived from red algae). Using these specific terms shows a higher level of culinary and linguistic sophistication.

O fitoplâncton é a base da cadeia alimentar nos oceanos.

Vegetação Marinha vs. Algas
'Vegetação marinha' is a broader term that includes not only algae but also seagrasses (which are true flowering plants). If you want to be scientifically accurate about a meadow of underwater plants, 'vegetação marinha' is the better choice.

Descriptively, if you are talking about the 'slime' or 'moss' often found on wet rocks (which are technically algae), you might use the word 'limo'. While 'algas marinhas' is the biological term, 'limo' is the common word for the slippery green coating found in damp environments. 'Cuidado, a rocha está com muito limo!' (Careful, the rock has a lot of slime/algae!).

O agar-agar é uma alternativa vegetal à gelatina comum.

Sargaço
Specifically refers to Sargassum, a genus of brown macroalgae. In the Caribbean and parts of Brazil, 'sargaço' is a well-known term due to the large 'marés de sargaço' (sargassum tides) that occasionally affect beaches.

A praia estava coberta de sargaço após a ressaca do mar.

As plantas aquáticas do aquário precisam de cuidados especiais.

O mergulhador fotografou o limo verde sobre as estátuas submersas.

چقدر رسمی است؟

نکته جالب

In ancient Rome, 'alga' was often used as a synonym for something worthless, but today it is considered 'green gold' due to its industrial value.

راهنمای تلفظ

UK /ˈæl.ɡiː məˈriː.nəz/
US /ˈæl.ɡi məˈri.nəz/
The primary stress in 'algas' is on the first syllable 'AL', and in 'marinhas' on the second syllable 'RI'.
هم‌قافیه با
Calças Salsas Valças Farofas Linhas Vizinhas Cozinhas Rainhas
خطاهای رایج
  • Pronouncing 'algas' as 'al-jas' (the 'g' should be hard like 'go').
  • Pronouncing 'nh' as a simple 'n'.
  • Treating 'algas' as masculine ('os algas').
  • Stressing the wrong syllable in 'marinhas' (e.g., MA-rinhas).
  • Pronouncing the final 's' as a hard 'z' in all contexts (in some dialects, it's 'sh').

سطح دشواری

خواندن 2/5

Easy to recognize if you know 'algae' and 'marine'.

نوشتن 3/5

Requires attention to plural and gender agreement.

صحبت کردن 3/5

The 'nh' and 'l' sounds can be tricky for beginners.

گوش دادن 2/5

Clear pronunciation in most contexts.

بعداً چه یاد بگیریم؟

پیش‌نیازها

Mar Planta Verde Água Peixe

بعداً یاد بگیرید

Recife Corais Ecossistema Sustentabilidade Biodiversidade

پیشرفته

Fotossíntese Eutrofização Bentônico Pelágico Ficologia

گرامر لازم

Feminine Noun Agreement

As algas (fem) marinhas (fem).

Pluralization of Compound Terms

Alga marinha -> Algas marinhas.

Adjective Placement

Algas (noun) marinhas (adjective).

Use of 'de' for Composition

Salada de algas marinhas.

Subject-Verb Agreement

As algas marinhas crescem (plural).

مثال‌ها بر اساس سطح

1

Eu vejo algas marinhas na praia.

I see seaweed on the beach.

Uses 'as' (feminine plural) implicitly.

2

As algas marinhas são verdes.

The seaweed is green.

Adjective 'verdes' matches plural noun.

3

Você gosta de algas marinhas?

Do you like seaweed?

Simple question structure.

4

O mar tem muitas algas marinhas.

The sea has a lot of seaweed.

Use of 'muitas' for plural count.

5

Esta alga marinha é longa.

This seaweed is long.

Singular use of 'alga marinha'.

6

Eu como algas marinhas no sushi.

I eat seaweed in sushi.

Direct object use.

7

As algas marinhas estão na água.

The seaweed is in the water.

Verb 'estar' for temporary location.

8

A alga marinha é uma planta?

Is seaweed a plant?

Simple identification question.

1

Nós encontramos muitas algas marinhas ontem.

We found a lot of seaweed yesterday.

Past tense 'encontramos'.

2

As algas marinhas não são perigosas.

Seaweed is not dangerous.

Negative sentence structure.

3

Eu prefiro sushi sem algas marinhas.

I prefer sushi without seaweed.

Preposition 'sem' (without).

4

As algas marinhas secas são crocantes.

Dried seaweed is crunchy.

Adjective 'secas' (dried).

5

Onde posso comprar algas marinhas?

Where can I buy seaweed?

Interrogative 'onde'.

6

As algas marinhas cheiram a mar.

Seaweed smells like the sea.

Verb 'cheirar a' (to smell like).

7

Existem diversos tipos de algas marinhas.

There are various types of seaweed.

Verb 'existir' in the plural.

8

As algas marinhas ajudam os peixes.

Seaweed helps the fish.

Subject-verb-object.

1

As algas marinhas são fundamentais para o ecossistema.

Seaweed is fundamental to the ecosystem.

Abstract noun 'ecossistema'.

2

Muitos cremes faciais contêm extratos de algas marinhas.

Many face creams contain seaweed extracts.

Verb 'conter' (to contain).

3

Se houver muitas algas marinhas, não poderemos nadar.

If there is a lot of seaweed, we won't be able to swim.

Future conditional with 'se'.

4

Ela estuda a biologia das algas marinhas na universidade.

She studies the biology of seaweed at the university.

Genitive 'das' (of the).

5

As algas marinhas podem ser usadas como fertilizante natural.

Seaweed can be used as a natural fertilizer.

Passive voice 'podem ser usadas'.

6

O aquecimento dos oceanos afeta as algas marinhas.

The warming of the oceans affects seaweed.

Subject is 'O aquecimento'.

7

Nós mergulhamos para ver as algas marinhas de perto.

We dove to see the seaweed up close.

Infinitive of purpose 'para ver'.

8

As algas marinhas absorvem o excesso de nutrientes na água.

Seaweed absorbs excess nutrients in the water.

Technical verb 'absorver'.

1

A produção industrial de algas marinhas está em expansão.

The industrial production of seaweed is expanding.

Compound subject phrase.

2

As algas marinhas desempenham um papel crucial no sequestro de carbono.

Seaweed plays a crucial role in carbon sequestration.

Idiomatic 'desempenhar um papel'.

3

Certas algas marinhas podem ser transformadas em bioplásticos.

Certain seaweeds can be transformed into bioplastics.

Modal verb 'podem' + passive.

4

O excesso de algas marinhas na costa pode indicar poluição.

Excess seaweed on the coast can indicate pollution.

Noun 'excesso' as subject.

5

A culinária contemporânea utiliza algas marinhas de formas inovadoras.

Contemporary cuisine uses seaweed in innovative ways.

Adjective 'contemporânea'.

6

Pesquisadores analisam as propriedades medicinais das algas marinhas.

Researchers analyze the medicinal properties of seaweed.

Plural agreement throughout.

7

As algas marinhas vermelhas são ricas em ágar.

Red seaweeds are rich in agar.

Specific classification.

8

A colheita sustentável de algas marinhas beneficia a comunidade local.

Sustainable seaweed harvesting benefits the local community.

Complex subject phrase.

1

A proliferação descontrolada de algas marinhas sufoca os recifes de coral.

The uncontrolled proliferation of seaweed suffocates coral reefs.

Strong verb 'sufoca'.

2

A viabilidade econômica do biocombustível de algas marinhas ainda é debatida.

The economic viability of seaweed biofuel is still debated.

Abstract concept 'viabilidade'.

3

As algas marinhas são bioindicadores sensíveis à qualidade da água.

Seaweed are bioindicators sensitive to water quality.

Scientific term 'bioindicadores'.

4

O moliço, composto por algas marinhas, era vital para a agricultura de Aveiro.

Moliço, composed of seaweed, was vital for Aveiro's agriculture.

Appositive phrase.

5

A taxonomia das algas marinhas sofreu revisões significativas recentemente.

The taxonomy of seaweed has undergone significant revisions recently.

Formal verb 'sofreu'.

6

As algas marinhas bentônicas vivem fixas ao substrato marinho.

Benthic seaweeds live attached to the marine substrate.

Technical adjective 'bentônicas'.

7

A extração de ficocoloides das algas marinhas é uma indústria multibilionária.

The extraction of phycocolloids from seaweed is a multibillion-dollar industry.

Specialized term 'ficocoloides'.

8

As algas marinhas mitigam os efeitos da acidificação dos oceanos.

Seaweed mitigates the effects of ocean acidification.

Advanced verb 'mitigam'.

1

A exuberância das algas marinhas nas crónicas de viagem evoca o mistério do abismo.

The exuberance of seaweed in travel chronicles evokes the mystery of the abyss.

Poetic/Literary register.

2

A simbiose entre certas algas marinhas e fungos dá origem aos líquenes marítimos.

The symbiosis between certain seaweeds and fungi gives rise to maritime lichens.

Biological precision.

3

O manejo das pradarias de algas marinhas exige uma abordagem holística e transfronteiriça.

The management of seaweed meadows requires a holistic and transboundary approach.

Policy-level vocabulary.

4

Fenómenos de maré vermelha, causados por micro-algas marinhas, podem ser letais.

Red tide phenomena, caused by marine micro-algae, can be lethal.

Complex causal structure.

5

A paleoceanografia utiliza vestígios de algas marinhas para reconstruir climas pretéritos.

Paleoceanography uses seaweed traces to reconstruct past climates.

Highly specialized field.

6

A resiliência das algas marinhas face a condições extremas é objeto de estudo genético.

The resilience of seaweed in the face of extreme conditions is the object of genetic study.

Prepositional phrase 'face a'.

7

Nas entrelinhas da biotecnologia, as algas marinhas surgem como o 'ouro verde' do século XXI.

In the subtext of biotechnology, seaweed emerges as the 'green gold' of the 21st century.

Metaphorical usage.

8

A desoxigenação das águas profundas é mitigada pela fotossíntese das algas marinhas superficiais.

The deoxygenation of deep waters is mitigated by the photosynthesis of surface seaweed.

Passive construction with technical terms.

ترکیب‌های رایج

Extrato de algas marinhas
Salada de algas marinhas
Floresta de algas marinhas
Cultivo de algas marinhas
Tipos de algas marinhas
Benefícios das algas marinhas
Proliferação de algas marinhas
Algas marinhas comestíveis
Algas marinhas desidratadas
Resíduos de algas marinhas

عبارات رایج

Cheio de algas marinhas

— When a place (like a beach) has a large amount of seaweed.

O mar hoje está cheio de algas marinhas.

Rico em algas marinhas

— Used to describe a habitat or a product with high seaweed content.

Este ecossistema é rico em algas marinhas.

À base de algas marinhas

— Something made primarily using seaweed.

Ele usa um fertilizante à base de algas marinhas.

Envolto em algas marinhas

— Something wrapped in seaweed, common in sushi descriptions.

O arroz vem envolto em algas marinhas.

Propriedades das algas marinhas

— Referring to the characteristics or benefits of seaweed.

As propriedades das algas marinhas são incríveis.

Suplemento de algas marinhas

— A health product derived from seaweed.

Tomo um suplemento de algas marinhas todas as manhãs.

Cama de algas marinhas

— A layer of seaweed on the ocean floor or beach.

Os caranguejos se escondem na cama de algas marinhas.

Sabor de algas marinhas

— Describing the specific salty/umami taste.

Este caldo tem um leve sabor de algas marinhas.

Cor de algas marinhas

— Often used to describe a specific dark green color.

Ela pintou a parede com uma cor de algas marinhas.

Pesquisador de algas marinhas

— A professional studying these organisms.

Meu tio é um renomado pesquisador de algas marinhas.

اغلب اشتباه گرفته می‌شود با

algas marinhas vs Águas marinhas

Sounds similar but means 'marine waters' or the gemstone 'aquamarine'.

algas marinhas vs Alças

Means 'straps' or 'handles', similar spelling but different sound.

algas marinhas vs Marinas

Refers to docks for boats, missing the 'h' sound.

اصطلاحات و عبارات

"Ficar nas algas"

— A rare/regional expression meaning to be stuck or confused (metaphorical).

Depois daquela pergunta, ele ficou nas algas.

Informal
"Cabelo de alga"

— Used to describe someone with very messy, wet, or long flowing hair.

Ela saiu do mar com cabelo de alga.

Informal
"Escorregar na alga"

— To make a mistake in a situation that seemed easy.

Ele sabia a matéria, mas escorregou na alga na hora da prova.

Slang
"Vender alga por peixe"

— To try to pass something of lesser value as something better.

Aquele vendedor tentou me vender alga por peixe.

Informal
"Pulmão de alga"

— A reference to the oxygen-producing power of the sea.

Precisamos proteger nosso pulmão de alga.

Metaphorical
"Vida de alga"

— A very quiet, drifting, or passive existence.

Ele não quer trabalhar, quer levar uma vida de alga.

Informal
"Agarrar-se às algas"

— To try any desperate measure to save oneself.

O político está se agarrando às algas para não perder o cargo.

Informal
"Sopa de algas"

— Used to describe very murky or dirty seawater.

Não entre lá, a água está uma sopa de algas.

Colloquial
"Ouro das algas"

— Refers to the high value of seaweed in certain industries.

A empresa descobriu o ouro das algas.

Journalistic
"Dança das algas"

— The rhythmic movement of seaweed in the currents.

Ficamos admirando a dança das algas no fundo do mar.

Poetic

به‌راحتی اشتباه گرفته می‌شود

algas marinhas vs Grama

Both are green and grow in clusters.

Grama is land grass; algas are aquatic.

A grama é do jardim, as algas são do mar.

algas marinhas vs Musgo

Both can be green and slimy.

Musgo (moss) grows on land/trees; algas grow in water.

O musgo cresce no tronco, a alga na rocha marinha.

algas marinhas vs Plantas aquáticas

Broad category.

Plantas aquáticas include vascular plants; algas are simpler organisms.

Nem todas as plantas aquáticas são algas marinhas.

algas marinhas vs Corais

Both found in reefs.

Corais are animals (cnidarians); algas are photosynthetic organisms.

Os corais formam a estrutura, as algas vivem neles.

algas marinhas vs Esponjas

Marine life.

Esponjas are animals; algas are not.

As esponjas filtram a água, as algas fazem fotossíntese.

الگوهای جمله‌سازی

A1

Eu vejo [algas marinhas].

Eu vejo algas marinhas.

A2

As [algas marinhas] são [adjective].

As algas marinhas são verdes.

B1

É importante [verb] as [algas marinhas].

É importante proteger as algas marinhas.

B2

O uso de [algas marinhas] em [area] é [adjective].

O uso de algas marinhas em cosméticos é comum.

C1

Apesar da [noun], as [algas marinhas] [verb].

Apesar da poluição, as algas marinhas sobrevivem.

C2

Sob a ótica da [noun], as [algas marinhas] representam [noun].

Sob a ótica da biotecnologia, as algas marinhas representam o futuro.

General

Há muitas [algas marinhas] na [place].

Há muitas algas marinhas na costa.

Culinary

Gosto de [food] com [algas marinhas].

Gosto de arroz com algas marinhas.

خانواده کلمه

اسم‌ها

Alga
Algarve (historical connection)
Algologia (study of algae)

فعل‌ها

Algar (rarely used, related to seaweed collection)

صفت‌ها

Algal
Marinho
Marinha

مرتبط

Mar
Oceano
Praia
Peixe
Coral

نحوه استفاده

frequency

Very high in coastal and culinary contexts.

اشتباهات رایج
  • O alga marinha A alga marinha

    The noun is feminine, so it requires the feminine article 'a'.

  • Algas marinhos Algas marinhas

    The adjective must agree with the feminine plural noun.

  • Muita alga marinha Muitas algas marinhas

    While singular is possible, plural is more natural for a mass of seaweed.

  • Algas marinas Algas marinhas

    Forgetting the 'h' changes the meaning to 'marinas' (docks).

  • Algas no rio Algas de água doce

    'Marinhas' specifically means from the sea. Don't use it for rivers.

نکات

Check Gender

Always use 'as' with 'algas'. It's a feminine word.

Use Plural

In 90% of cases, use the plural form 'algas marinhas'.

The NH sound

Practice 'marinhas' like 'ma-ree-nyas' to sound native.

Sushi Context

In a Japanese restaurant, 'alga' is the most common word used.

Oxygen Fact

Mentioning they produce oxygen is a great way to use the word in conversation.

Safety Tip

Warn others: 'As algas nas pedras são escorregadias'.

Skincare

Look for 'extrato de algas' on labels for natural products.

Hydration

Mention 'hidratar as algas' when preparing dried seaweed.

Sustainability

Use 'algas' when talking about future sustainable fuels.

Color Match

Associate 'algas' with the color 'verde-escuro' (dark green).

حفظ کنید

روش یادسپاری

Think of 'AL-GAs' as 'ALL GAS'—because they produce the oxygen (gas) we breathe. 'MAR-inhas' sounds like 'MARINE'.

تداعی تصویری

Imagine a green 'A' shaped like a piece of seaweed floating in the 'MAR' (sea).

شبکه واژگان

Mar Verde Sushi Oxigênio Oceano Praia Salgado Natureza

چالش

Try to use 'algas marinhas' in a sentence about your favorite beach and another about your favorite food.

ریشه کلمه

From Latin 'alga' (seaweed) and 'marinus' (of the sea). The word has remained remarkably stable from its Latin roots into modern Portuguese.

معنای اصلی: Plants or vegetation found in the sea.

Romance (Latin origin).

بافت فرهنگی

Be careful when discussing 'marés vermelhas' (red tides) as they can be a sensitive topic for local fishing communities due to toxicity.

While English speakers often just say 'seaweed', Portuguese speakers almost always add 'marinhas' to be specific about the origin.

The 'Caminho do Moliço' in Aveiro, Portugal. Documentaries by Jacques Cousteau dubbed in Portuguese. Brazilian songs about the sea (e.g., Dorival Caymmi).

تمرین در زندگی واقعی

موقعیت‌های واقعی

At the Beach

  • A areia está cheia de algas.
  • Cuidado para não escorregar nas algas.
  • As algas marinhas estão boiando.
  • Vou recolher umas algas marinhas.

In a Restaurant

  • Este sushi tem muita alga.
  • Quero uma salada de algas marinhas.
  • A alga está bem crocante.
  • Vocês usam algas marinhas frescas?

In a Biology Class

  • As algas marinhas produzem oxigênio.
  • Existem algas marinhas unicelulares.
  • O ciclo de vida das algas marinhas.
  • A importância das algas marinhas.

In a Cosmetic Store

  • Este creme é de algas marinhas.
  • Quero uma máscara facial de algas.
  • As algas marinhas hidratam a pele.
  • É um sabonete com algas marinhas.

Environmental News

  • A poluição afeta as algas marinhas.
  • Novas tecnologias com algas marinhas.
  • O papel das algas marinhas no clima.
  • Expedição para estudar algas marinhas.

شروع‌کننده‌های مکالمه

"Você sabia que as algas marinhas produzem a maior parte do nosso oxigênio?"

"Você gosta do sabor das algas marinhas na comida japonesa?"

"Já viu aquelas florestas gigantes de algas marinhas em documentários?"

"Você se incomoda quando tem muitas algas marinhas na praia?"

"Já usou algum produto de beleza que contenha algas marinhas?"

موضوعات نگارش

Descreva uma vez que você viu algas marinhas na praia. Como elas eram?

Escreva sobre a importância das algas marinhas para o meio ambiente.

Você acha que as algas marinhas serão o alimento do futuro? Por quê?

Imagine que você é um mergulhador explorando uma floresta de algas marinhas.

Reflita sobre como pequenos organismos como as algas marinhas sustentam a vida na Terra.

سوالات متداول

10 سوال

Cientificamente, elas não são plantas verdadeiras, mas são frequentemente chamadas assim por realizarem fotossíntese.

Não, embora muitas sejam comestíveis, algumas podem ser tóxicas ou estar contaminadas.

Elas produzem cerca de 70% do oxigênio da Terra e são a base da vida no mar.

Sargaço é um tipo específico de alga marinha marrom que flutua em grandes massas.

Não, as algas não possuem sistema nervoso ou receptores de dor.

Diz-se 'algas marinhas', tal como no Brasil, embora existam termos regionais como 'moliço'.

Não, as algas marinhas não produzem flores, sementes ou raízes verdadeiras.

O sushi é frequentemente envolto em uma alga marinha seca chamada 'nori'.

Elas vivem em oceanos e mares, presas a rochas ou flutuando na água.

Sim, o Kelp é uma alga marinha que pode crescer até 60 metros de comprimento.

خودت رو بسنج 180 سوال

writing

Escreva uma frase sobre algas marinhas na praia.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Descreva a cor das algas marinhas.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Por que as algas marinhas são importantes?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Você gosta de comer algas marinhas? Onde?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

O que acontece se houver muitas algas no mar?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Como as algas marinhas são usadas na cosmética?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Explique o termo 'pulmão do mundo' relacionado às algas.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Descreva uma floresta de algas marinhas.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Quais os benefícios de comer algas marinhas?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Como o clima afeta as algas marinhas?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

O que é o nori?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

As algas marinhas podem ser usadas na agricultura?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Qual a diferença entre alga e musgo?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Escreva sobre a 'maré vermelha'.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

As algas marinhas ajudam na economia?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

O que você sente ao tocar em algas marinhas?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Imagine um futuro onde as algas são o combustível principal.

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

As algas marinhas protegem a costa?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Por que o mar cheira a algas?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
writing

Como as algas marinhas se reproduzem?

خوب نوشتید! تلاش خوبی بود! پاسخ نمونه را ببینید.

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Diga 'As algas marinhas são verdes'.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Pergunte se há algas marinhas no sushi.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Diga que você viu algas na praia.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Comente sobre o cheiro das algas marinhas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Diga que as algas são boas para a saúde.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Explique que as algas produzem oxigênio.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Avise alguém sobre algas escorregadias.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Fale sobre o uso de algas em cremes.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Sugira uma salada de algas marinhas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Discuta a importância ecológica das algas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Mencione o cultivo de algas marinhas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Fale sobre a maré vermelha.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Explique o que é o sargaço.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Debata o uso de algas como combustível.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Fale sobre a taxonomia das algas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Use o termo 'bioindicadores' em uma frase.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Comente sobre a economia azul.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Fale sobre a resiliência dos oceanos.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Discuta a biotecnologia das algas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
speaking

Faça uma metáfora com algas marinhas.

این را بلند بخوانید:

درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'As algas marinhas estão no mar'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Eu gosto de algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'As algas são verdes'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'A salada tem algas marinhas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Muitas algas marinhas na praia'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'O oxigênio vem das algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Extrato de algas marinhas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Cultivo de algas marinhas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'As algas protegem o recife'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Biodiversidade das algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Sequestro de carbono por algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Economia azul e algas marinhas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Proliferação descontrolada de algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Propriedades medicinais das algas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:
listening

Ouça e escreva: 'Taxonomia das algas marinhas'.

درسته! نه دقیقاً. پاسخ صحیح:
درسته! نه دقیقاً. پاسخ صحیح:

/ 180 درست

نمره کامل!

محتوای مرتبط

واژه‌های بیشتر nature

à beira

B1

On the edge or brink of.

à beira de

B1

در آستانه؛ در کنار. برای مکان فیزیکی یا وضعیت قریب‌الوقوع استفاده می‌شود.

à distância

A2

از راه دور، از فاصله.

a favor de

B1

In favor of; supporting.

à sombra

A2

در سایه (Dar sayeh). 'در سایه درخت نشستیم (Sentámo-nos à sombra da árvore).' / 'هوا در سایه خنک‌تر است (O tempo à sombra está mais fresco).'

à volta

A2

« À volta » به معنی «اطراف» یا «نزدیکی» است. برای توصیف یک منطقه عمومی یا مکانی در نزدیکی استفاده می‌شود. مثال: کافه <strong>à volta</strong> میدان است. (کافه اطراف میدان است.) همچنین حرکت دایره‌ای را نشان می‌دهد. مثال: بیایید <strong>à volta</strong> پارک قدم بزنیم. (بیایید اطراف پارک قدم بزنیم.)

abanar

A2

To wave or swing back and forth, like an animal's tail; to wag.

abater

B1

1. انداختن (درخت). 2. ذبح کردن (حیوان). 3. کسر کردن (مبلغ). 'درخت را انداختند.' 'می‌توانید هزینه‌ها را از مالیات کسر کنید.'

Abelha

A2

Bee; a stinging winged insect that produces honey.

abeto

A2

آبتو (abeto) درختی همیشه سبز با سوزن های تخت است که معمولاً به عنوان درخت نراد شناخته می شود.

مفید بود؟
هنوز نظری وجود ندارد. اولین نفری باشید که افکار خود را به اشتراک می‌گذارد!