微生物 in 30 Seconds
- Microorganisms are tiny life forms, invisible to the naked eye.
- They include bacteria, viruses, and fungi.
- Essential for ecosystems, health, and food production.
- Studied in biology and medicine.
- Definition
- Microorganism; a microscopic organism, especially a bacterium, virus, or fungus.
- Etymology
- The word '微生物' is composed of two kanji: '微' (bi), meaning 'tiny' or 'minute,' and '生物' (seibutsu), meaning 'living thing' or 'organism.' Together, they literally translate to 'tiny living things.' This term is widely used in scientific and general contexts when discussing organisms that are too small to be seen with the naked eye.
- Usage Contexts
- This word is frequently encountered in discussions related to biology, medicine, environmental science, food science, and public health. For example, you might hear about the role of '微生物' in fermentation processes, their impact on human health (both beneficial and harmful), or their importance in ecosystems. It's a fundamental term in scientific education and research.
The study of 微生物 is crucial for understanding many biological processes.
Our bodies contain a vast number of beneficial 微生物.
Scientists are researching new ways to control harmful 微生物.
- Basic Sentence Structure
- '微生物' often appears as the subject or object of a sentence, describing phenomena or entities related to these tiny life forms. It can be modified by adjectives or used in conjunction with verbs that describe their actions or effects.
- Common Verb Pairings
- Verbs like '存在する' (sonzai suru - to exist), '繁殖する' (hanshoku suru - to multiply/breed), '活動する' (katsudō suru - to be active), '検出する' (kenshutsu suru - to detect), '影響を与える' (eikyō o ataeru - to influence/affect), and '研究する' (kenkyū suru - to research) are frequently used with '微生物'.
- Example Sentence Patterns
- 1. [Noun Phrase] は 微生物 を含んでいます。(Noun Phrase wa biseibutsu o fukunde imasu.) - [Noun Phrase] contains microorganisms.
2. 微生物 は環境に大きな影響を与えます。(Biseibutsu wa kankyō ni ōkina eikyō o ataemasu.) - Microorganisms greatly influence the environment.
3. この研究は特定の 微生物 の生態についてです。(Kono kenkyū wa tokutei no biseibutsu no seitai ni tsuite desu.) - This research is about the ecology of specific microorganisms.
4. 私たちは体内に多くの 微生物 を持っています。(Watashitachi wa tainai ni ōku no biseibutsu o motte imasu.) - We have many microorganisms inside our bodies.
The soil is rich in various kinds of 微生物.
Scientists are working to identify and categorize these 微生物.
- Scientific Lectures and Documentaries
- In university lectures on biology, microbiology, or environmental science, '微生物' is a fundamental term. Documentaries about nature, the human body, or scientific discoveries will also frequently use this word when discussing microscopic life.
- Medical and Health Discussions
- Doctors, researchers, or health journalists might use '微生物' when explaining infections, the gut microbiome, or the development of new medicines and vaccines. Public health announcements regarding hygiene also touch upon the role of '微生物'.
- Food and Agriculture
- Discussions about fermentation (like in making yogurt, soy sauce, or sake), food preservation, or soil health in agriculture often involve '微生物'. You might hear it on cooking shows or in agricultural science programs.
- Environmental Science and Ecology
- When talking about ecosystems, pollution control, or the cycles of nature, the role of '微生物' in breaking down waste or supporting life is often highlighted. This could be in news reports or educational content about the environment.
- General News and Science Popularization
- Even in general news, if a story involves a new scientific breakthrough related to bacteria, viruses, or fungi, or perhaps an outbreak of a disease, '微生物' will be the term used. Science popularization magazines and websites also frequently feature this word.
The documentary explained how 微生物 play a vital role in the decomposition of organic matter.
Doctors discussed the importance of maintaining a healthy balance of 微生物 in the gut.
- Confusing with Larger Organisms
- Learners might mistakenly use '微生物' to refer to larger, visible organisms like insects or small animals. The core meaning of '微' (bi) is 'tiny' or 'minute,' emphasizing the microscopic nature of these life forms. Therefore, '微生物' specifically refers to organisms invisible to the naked eye.
- Overgeneralization
- Sometimes, learners might use '微生物' too broadly to cover any small entity, including non-living particles. While the term is broad within the realm of microscopic life, it is still specific to living organisms. For instance, dust particles are not '微生物'.
- Incorrect Pluralization (Implicit)
- Japanese nouns generally do not have distinct plural forms like English. '微生物' can refer to one microorganism or many. A common mistake for English speakers is to try and add a plural marker where it's not needed, or to assume it always refers to a single entity. Context is key to understanding if it's singular or plural.
- Mispronunciation
- While not strictly a vocabulary mistake, mispronouncing 'bi-sei-butsu' can lead to confusion. Ensuring the correct pronunciation of each syllable, especially the 'bi' sound, is important for clear communication.
It is incorrect to call a ladybug a 微生物.
Dust is not a 微生物, though it can carry them.
- 細菌 (saikin)
- Meaning: Bacterium/Bacteria.
Comparison: '細菌' is a specific type of '微生物'. While '微生物' is a broad category that includes bacteria, viruses, fungi, and protozoa, '細菌' refers exclusively to bacteria. You would use '微生物' when referring to any microscopic organism, but '細菌' only when you know it's a bacterium. - ウイルス (uirusu)
- Meaning: Virus.
Comparison: Similar to '細菌', 'ウイルス' is a specific type of '微生物'. If you are talking about viruses, you would use this loanword. '微生物' encompasses viruses, but is not limited to them. - 菌類 (kinrui)
- Meaning: Fungi (plural, encompassing yeasts and molds).
Comparison: This term refers to the fungal kingdom. Fungi like yeasts and molds are also '微生物'. So, '菌類' is a subset of '微生物', specifically referring to fungi. - 微細生物 (bisai seibutsu)
- Meaning: Microscopic organism (literal translation).
Comparison: This is essentially a more literal and sometimes more formal or academic synonym for '微生物'. '微細' (bisai) also means 'minute' or 'fine.' In many contexts, they are interchangeable, but '微生物' is generally more common in everyday scientific discourse. - 小生物 (shō seibutsu)
- Meaning: Small creature/organism.
Comparison: This is a more general term for small living things. It can include very small animals or insects that are visible to the eye, as well as microorganisms. It's less precise than '微生物' for referring specifically to microscopic life.
Yogurt production relies on beneficial 微生物, specifically lactic acid 細菌.
The flu is caused by a type of ウイルス, which is a kind of 微生物.
How Formal Is It?
Fun Fact
The concept of 'microorganisms' was recognized long before the word '微生物' was established in Japanese. Early observations of fermentation and decay likely hinted at the existence of unseen agents. The formalization of the term allowed for more precise scientific discourse and education.
Pronunciation Guide
- Pronouncing 'bi' as 'bai' or 'bee'.
- Adding an unnecessary 'r' sound, like 'bir-seibutsu'.
- Mushing the syllables together instead of enunciating each one clearly.
Difficulty Rating
CEFR B1 level. '微生物' is a common scientific term. Understanding it requires familiarity with biological concepts, but the word itself is generally used in clear contexts in B1 materials. Its complexity increases with specialized collocations.
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
The use of potential form verbs (e.g., 見える mieru - can see, できない dekinai - cannot do) when discussing visibility and capabilities of microorganisms.
微生物は見えないが、その影響は大きい。
Passive voice (e.g., 〜される sareru) when microorganisms are acted upon or when describing discoveries.
新しい微生物が発見された。
Purpose clauses using 〜ために (tame ni) or 〜ように (yō ni) when discussing the use or function of microorganisms.
この薬は病原菌を殺すために使われる。
The particle 'が' (ga) for existence with verbs like いる (iru) and 存在する (sonzai suru) when stating the presence of microorganisms.
土壌に多くの微生物がいる。
The use of descriptive adjectives (e.g., 有用 yūyō - beneficial, 病原性 byōgensei - pathogenic) before '微生物' to specify their nature.
有用微生物は健康に良い。
Examples by Level
Dirt has tiny things.
This is a simplified way to introduce the concept without using the word '微生物'.
Focus on simple subject-verb-object structure.
Wash your hands from germs.
Using 'germs' as a more accessible concept for '微生物'.
Imperative mood for instructions.
Some small things make you sick.
Focus on the effect of microorganisms.
Use of 'some' and 'make you sick'.
We can't see them.
Highlighting the microscopic nature.
Simple negation with 'can't'.
They are very small.
Emphasizing size.
Simple adjective use.
Good small things help us.
Introducing the idea of beneficial microorganisms.
Simple adjective and verb use.
Bad small things make us ill.
Contrasting with beneficial ones.
Use of 'bad' and 'ill'.
We study them in science.
Connecting to the subject of science class.
Simple present tense for general facts.
体には多くの 微生物 が存在します。
Our bodies have many microorganisms.
Use of 'は' (wa) for topic and 'が' (ga) for existence.
ヨーグルトを作るのに 微生物 が必要です。
Microorganisms are necessary to make yogurt.
Use of 'の' (no) for possession/purpose and 'に' (ni) for purpose.
手洗いは 微生物 を減らすために重要です。
Handwashing is important to reduce microorganisms.
Use of 'ために' (tame ni) for purpose.
この薬は 微生物 を殺します。
This medicine kills microorganisms.
Simple transitive verb '殺します' (koroshimasu).
土壌にはたくさんの 微生物 がいます。
There are many microorganisms in the soil.
Use of 'たくさん' (takusan) for quantity and 'います' (imasu) for animate existence.
病気の原因となる 微生物 もあります。
There are also microorganisms that cause illness.
Use of 'となる' (to naru) to mean 'become' or 'result in'.
新しい 微生物 が発見されました。
New microorganisms were discovered.
Passive voice '発見されました' (hakken saremashita).
環境保護において 微生物 の役割は大きいです。
The role of microorganisms in environmental protection is large.
Use of 'において' (ni oite) for 'in' or 'regarding'.
腸内 微生物 のバランスは健康に大きく影響します。
The balance of gut microorganisms greatly affects health.
Use of '内' (nai) as a suffix for 'within' and '大きく影響します' (ōkiku eikyō shimasu) for 'greatly affects'.
発酵食品には多様な 微生物 が関与しています。
Diverse microorganisms are involved in fermented foods.
Use of '多様な' (tayō na) for 'diverse' and '関与しています' (kan'yo shite imasu) for 'are involved'.
これらの 微生物 は、特定の条件下でしか生存できません。
These microorganisms can only survive under specific conditions.
Use of '条件下でしか' (jōken ka de shika) for 'only under conditions'.
環境浄化における 微生物 の利用が研究されています。
The use of microorganisms in environmental purification is being researched.
Passive voice '研究されています' (kenkyū sarete imasu) and '利用' (riyō) for 'use'.
抗生物質は 微生物 の増殖を抑制します。
Antibiotics inhibit the proliferation of microorganisms.
Use of '増殖' (zōshoku) for 'proliferation' and '抑制します' (yokusei shimasu) for 'inhibit'.
病原性 微生物 の検出は迅速に行われる必要があります。
The detection of pathogenic microorganisms needs to be done quickly.
Use of '病原性' (byōgensei) for 'pathogenic' and '迅速に' (jinsoku ni) for 'quickly'.
地球上の生命の進化に 微生物 は不可欠な役割を果たしました。
Microorganisms played an essential role in the evolution of life on Earth.
Use of '不可欠な' (fukaketsu na) for 'essential' and '役割を果たしました' (yakuwari o hatashimashita) for 'played a role'.
現代医学は 微生物 学の発展に大きく依存しています。
Modern medicine greatly depends on the development of microbiology.
Use of '微生物 学' (biseibutsu-gaku) for 'microbiology'.
宿主細胞と細胞内 微生物 との間の複雑な共生関係を調査した。
Investigated the complex symbiotic relationship between host cells and intracellular microorganisms.
Use of '宿主細胞' (shukushu saibō) for 'host cells', '細胞内' (saibō nai) for 'intracellular', and '共生関係' (kyōsei kankei) for 'symbiotic relationship'.
ゲノム解析により、これまで未知であった 微生物 群集の多様性が明らかになった。
Genome analysis revealed the diversity of previously unknown microbial communities.
Use of 'ゲノム解析' (genomu kaiseki) for 'genome analysis', '未知であった' (michi de atta) for 'previously unknown', and '群集' (gunshū) for 'community'.
特定の 微生物 によるバイオフィルム形成メカニズムの解明が急務である。
Clarifying the mechanism of biofilm formation by specific microorganisms is urgent.
Use of 'バイオフィルム' (baiofirumu) for 'biofilm', 'メカニズム' (mekanizumu) for 'mechanism', and '解明' (kaimei) for 'clarification'.
環境ストレス下での 微生物 の適応戦略に関する研究は、応用微生物学の進展に寄与する。
Research on the adaptation strategies of microorganisms under environmental stress contributes to the advancement of applied microbiology.
Use of '環境ストレス下' (kankyō sutoresu ka) for 'under environmental stress', '適応戦略' (tekiō senryaku) for 'adaptation strategies', and '寄与する' (kiyo suru) for 'contributes'.
メタゲノミクス技術は、培養困難な 微生物 の生態を包括的に理解することを可能にした。
Metagenomic technology has made it possible to comprehensively understand the ecology of difficult-to-culture microorganisms.
Use of 'メタゲノミクス' (metagenomikusu) for 'metagenomics', '培養困難な' (baiyō konnan na) for 'difficult-to-culture', and '包括的に' (hōkatsu teki ni) for 'comprehensively'.
抗生物質耐性 微生物 の出現は、公衆衛生上の重大な脅威となっている。
The emergence of antibiotic-resistant microorganisms poses a significant threat to public health.
Use of '抗生物質耐性' (kōseibusshitsu taisei) for 'antibiotic-resistant' and '公衆衛生上の重大な脅威' (kōshū eisei jō no jūdai na kyōi) for 'significant threat to public health'.
惑星間 微生物 の存在可能性を探る研究が進められている。
Research is underway to explore the possibility of extraterrestrial microorganisms.
Use of '惑星間' (wakusei kan) for 'interplanetary/extraterrestrial'.
地球の初期環境における 微生物 の代謝活動が、大気の組成に与えた影響は計り知れない。
The impact of microbial metabolic activity on the composition of the atmosphere in Earth's early environment is immeasurable.
Use of '初期環境' (shoki kankyō) for 'early environment', '代謝活動' (taisha katsudō) for 'metabolic activity', and '計り知れない' (hakarishirenai) for 'immeasurable'.
極限環境下で生存する 微生物 の生化学的および遺伝子工学的特性の解明は、バイオテクノロジーの新たな地平を拓く。
Elucidating the biochemical and genetic engineering characteristics of microorganisms surviving in extreme environments opens new horizons in biotechnology.
Highly specialized vocabulary, including '生化学的' (seikagaku teki - biochemical), '遺伝子工学的' (idenshi kōgaku teki - genetic engineering), and '新たな地平を拓く' (arata na chihei o hiraku - opens new horizons).
マイクロバイオーム研究における 微生物 の系統発生学的アプローチは、生態系機能の理解を深化させる。
Phylogenetic approaches to microorganisms in microbiome research deepen the understanding of ecosystem functions.
Specialized terms like 'マイクロバイオーム' (maikurobaiōmu - microbiome), '系統発生学的' (keitō hassei gaku teki - phylogenetic), and '生態系機能' (seitaikei kinō - ecosystem functions).
地球外生命体探査において、'生命の痕跡'としての 微生物 のバイオシグネチャー検出は最重要課題である。
In the search for extraterrestrial life, detecting biosignatures of microorganisms as 'traces of life' is of utmost importance.
Advanced scientific terminology like '地球外生命体探査' (chikyūgai seimeitai tansa - extraterrestrial life exploration), '生命の痕跡' (seimei no konseki - traces of life), and 'バイオシグネチャー' (baioshigunechā - biosignature).
合成生物学は、特定の機能を持つ 微生物 を設計・構築する能力を飛躍的に向上させた。
Synthetic biology has dramatically improved the ability to design and construct microorganisms with specific functions.
Use of '合成生物学' (gōsei seibutsu gaku - synthetic biology), '設計・構築' (sekkei kōchiku - design and construct), and '飛躍的に向上させた' (hiyaku teki ni kōjō saseta - dramatically improved).
感染症パンデミックの予測および封じ込め戦略において、微生物 の進化速度と変異性を考慮することは不可欠である。
Considering the evolutionary speed and variability of microorganisms is essential in strategies for predicting and containing infectious disease pandemics.
Complex terms such as '感染症パンデミック' (kansenshō pandemikku - infectious disease pandemic), '封じ込め戦略' (fūjikome senryaku - containment strategy), '進化速度' (shinka sokudo - evolutionary speed), and '変異性' (hen'isei - variability).
腸内 微生物叢と神経系との相互作用、いわゆる '脳腸相関' のメカニズム解明は、精神神経疾患治療の新たな道筋を示す。
Elucidating the mechanisms of the interaction between the gut microbiota and the nervous system, the so-called 'gut-brain axis,' shows a new path for treating neuropsychiatric disorders.
Advanced concepts like '腸内 微生物叢' (chōnai biseibutsu-gassō - gut microbiota), '脳腸相関' (nōchō sōkan - gut-brain axis), and '精神神経疾患' (seishin shinkei shikkan - neuropsychiatric disorders).
地球の初期生命誕生のプロセスにおいて、自己複製能力を持つ 微生物 の出現は、生命進化の原動力となったと考えられている。
It is thought that the emergence of microorganisms with self-replicating capabilities was the driving force behind the evolution of life in the process of early Earth's life formation.
Focus on complex phrasing such as '自己複製能力を持つ' (jiko fukusei nōryoku o motsu - possessing self-replicating ability) and '生命進化の原動力' (seimei shinka no gendōryoku - driving force of life's evolution).
微生物 を利用したバイオレメディエーション技術は、環境汚染物質の分解において、従来の物理化学的手法に比べて持続可能性と経済性に優れる。
Bioremediation technology using microorganisms is superior in sustainability and economy compared to conventional physicochemical methods in the degradation of environmental pollutants.
Specialized terms like 'バイオレメディエーション' (baioremediēshon - bioremediation), '環境汚染物質' (kankyō osen busshitsu - environmental pollutants), and '物理化学的手法' (butsuri kagaku teki shuhō - physicochemical methods).
Common Collocations
Common Phrases
— There are microorganisms.
この水には微生物がいるかもしれないので、飲まない方がいい。
— To study microorganisms.
大学で微生物を研究するクラスがあります。
— Influence/effect by microorganisms.
食品の微生物による影響は大きい。
— Activity of microorganisms.
土壌中の微生物の活動が活発になっている。
— Proliferation/multiplication of microorganisms.
温度が高いと微生物の増殖が速くなる。
— Detection of microorganisms.
このキットは微生物の検出に使われる。
— Balance of microorganisms.
健康のためには、体内の微生物のバランスが大切だ。
— Contamination by microorganisms.
手術室の微生物による汚染を防ぐ。
— Role of microorganisms.
生態系における微生物の役割は多岐にわたる。
— Origin of microorganisms.
地球上の微生物の起源はまだ完全には解明されていない。
Often Confused With
'細菌' specifically refers to bacteria, which are a type of '微生物'. If you are talking about any microscopic organism, use '微生物'. If you know it's a bacterium, use '細菌'.
'ウイルス' refers to viruses, another type of '微生物'. '微生物' is the broader category that includes viruses.
'小生物' means 'small creature' and can include visible insects or animals, not just microscopic ones. '微生物' is specifically for organisms invisible to the naked eye.
Idioms & Expressions
— Invisible microorganisms (emphasizing their microscopic nature).
私たちが普段意識しないだけで、身の回りには目に見えない微生物がたくさんいる。
General— The world of microorganisms (referring to the study or realm of these tiny organisms).
この本は、微生物の世界を分かりやすく解説している。
General— At the microbial level (referring to something happening at a very small, fundamental scale).
この治療法は、微生物レベルでの働きかけを目的としている。
Scientific/Technical— The benefits/boons of microorganisms.
発酵食品は、微生物の恩恵を受けた食文化の例だ。
General/Positive connotation— The fight against microorganisms (often referring to fighting diseases or infections).
人類は古来より、微生物との戦いを続けてきた。
General/Serious connotation— The power/force of microorganisms.
驚くべき微生物の力によって、汚染された土壌が浄化される。
General/Positive or neutral connotation— The activities/life processes of microorganisms.
自然界は、目に見えない微生物の営みによって支えられている。
General/Descriptive— A treasure trove of microorganisms (referring to a place rich in microbial diversity).
熱帯雨林の土壌は、微生物の宝庫と言える。
Figurative/Descriptive— The evolution of microorganisms.
微生物の進化は、地球上の生命の歴史を理解する上で鍵となる。
Scientific— To culture/grow microorganisms.
実験室で微生物を培養する。
Scientific/TechnicalEasily Confused
Both are types of microscopic life.
'微生物' (biseibutsu) is the general term for all microscopic organisms, including bacteria, viruses, fungi, etc. '細菌' (saikin) specifically refers to bacteria. Think of 'microorganism' vs. 'bacterium'.
ヨーグルトには<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>乳酸細菌</mark>という<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物</mark>が使われている。
Both are microscopic and can cause illness.
'微生物' is the broad category. 'ウイルス' (uirusu) is a specific type of microorganism that is often associated with diseases. Viruses are not technically considered living by all definitions, but they are studied within microbiology.
インフルエンザは<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>ウイルス</mark>による病気で、<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物</mark>の一種です。
Fungi are a type of microorganism.
'微生物' is the overarching term. '菌類' (kinrui) refers specifically to fungi, which include yeasts and molds. So, all '菌類' are '微生物', but not all '微生物' are '菌類'.
パンを作るための酵母は<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>菌類</mark>であり、<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物</mark>の一種です。
Both mean 'microscopic organism'.
'微生物' (biseibutsu) is the more commonly used and general term. '微細生物' (bisai seibutsu) is a more literal translation and often used in academic or formal writing, but '微生物' is widely understood and preferred in most contexts.
この論文では<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微細生物</mark>という言葉を使っているが、意味は<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物</mark>と同じだ。
Both refer to small living things.
'微生物' (biseibutsu) strictly refers to microscopic organisms that cannot be seen with the naked eye. '小生物' (shō seibutsu) means 'small creature' and can include very small visible animals or insects, not just microscopic ones. It's a broader and less precise term for microscopic life.
アリは<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>小生物</mark>だが、<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物</mark>ではない。
Sentence Patterns
Noun + は + tiny things + です。
土は<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>tiny things</mark>です。（This is a simplification for A2, where 'tiny things' would be explained as 'microorganisms' later.)
Subject + は + 微生物 + が + 存在する/いる。
私たちの体には<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物が存在します</mark>。
Purpose + ために + 微生物 + が + 必要です。
ヨーグルトを作る<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>ために、微生物が必要です</mark>。
Noun Phrase + は + 微生物 + の + バランス + に + 影響される。
腸内<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物のバランス</mark>は健康に影響される。
Noun Phrase + において + 微生物 + の + Role + は + 重要です。
環境浄化<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>における微生物の役割は重要です</mark>。
Noun Phrase + が + 微生物 + の + 特性/メカニズム + を + 明らかにする。
ゲノム解析が<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物の特性を明らかにしました</mark>。
Noun Phrase + は + 微生物 + による + Noun Phrase + として + 考えられる。
この現象は<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>微生物によるもの</mark>として考えられる。
Noun Phrase + の + 微生物 + を + 対象とした + Noun Phrase + は + Verb。
極限環境下<mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>の微生物を対象とした研究</mark>は、バイオテクノロジーの進歩に寄与する。
Word Family
Nouns
Adjectives
Related
How to Use It
Common, especially in scientific, educational, and health-related contexts.
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Using 微生物 for visible insects or small animals.
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Small animals or insects should not be called 微生物.
The kanji '微' (bi) means 'tiny' or 'minute.' 微生物 specifically refers to organisms that are microscopic, meaning they can only be seen with a microscope. Visible creatures are generally referred to with other terms like 小動物 (shō dōbutsu - small animal) or just their specific names.
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Attempting to pluralize 微生物.
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微生物 (biseibutsu) can refer to one or many microorganisms; explicit plural forms are not used in Japanese.
Japanese nouns do not typically change form to indicate plurality. Context is used to understand quantity. Phrases like '多くの微生物' (ōku no biseibutsu - many microorganisms) are used to specify plurality.
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Confusing 微生物 with specific types like 細菌 (saikin) or ウイルス (uirusu) when the general term is needed.
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Use 微生物 for the general category of microscopic life, and specific terms like 細菌 (bacteria) or ウイルス (virus) when referring to those specific types.
'微生物' is the overarching category. If you are talking about bacteria, use '細菌'. If you are talking about viruses, use 'ウイルス'. If you mean any microscopic organism, use '微生物'.
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Mispronouncing the word, e.g., 'bi-sai-butsu' instead of 'bi-sei-butsu'.
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Pronounce it as 'bi-sei-butsu'.
The correct pronunciation is 'bi-sei-butsu', with the stress relatively even on each syllable. Mispronouncing the middle vowel sound can lead to confusion.
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Using 微生物 to refer to non-living microscopic particles like dust or pollen.
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微生物 refers specifically to living organisms.
Although microscopic, dust particles, pollen grains, or mineral fragments are not '生物' (living things) and therefore are not '微生物'. The term strictly applies to life forms.
Tips
Break Down the Kanji
Remember that '微' (bi) means 'tiny' or 'minute,' and '生物' (seibutsu) means 'living thing.' This direct translation, 'tiny living things,' is a powerful mnemonic for understanding the core meaning of '微生物'.
Clear Syllables
Pronounce each syllable of 'bi-sei-butsu' distinctly. Avoid rushing or blending them too much. This ensures clarity when speaking.
Connect to Examples
Link the word '微生物' to concrete examples like bacteria in yogurt, mold on bread, or germs on your hands. This makes the abstract concept more tangible and easier to remember.
Learn Related Terms
Once you know '微生物', learn related terms like '細菌' (bacteria), 'ウイルス' (virus), and '菌類' (fungi). Understanding these specific types will deepen your comprehension of the broader category.
Sentence Creation
Try creating your own sentences using '微生物'. Start with simple sentences and gradually increase complexity, incorporating verbs and adjectives you've learned.
Fermented Foods
Japanese cuisine features many fermented foods (miso, soy sauce, natto). Understanding these foods provides a direct cultural link to the concept and use of beneficial microorganisms.
Avoid Overgeneralization
Remember that '微生物' refers specifically to microscopic living organisms. Don't use it for non-living particles like dust, or for visible insects.
Listen Actively
When listening to Japanese, actively try to identify '微生物' in discussions about science, health, or food. This will help you get accustomed to its natural usage.
Regular Review
Revisit the word and its context periodically. Spaced repetition is key to long-term retention of new vocabulary.
Memorize It
Mnemonic
Think of the 'bi' in 'bi-seibutsu' sounding like 'bee,' and bees are tiny. 'Seibutsu' means 'living thing.' So, 'bee-living-thing' reminds you of tiny, living things – microorganisms.
Visual Association
Imagine a tiny bee (bi) carrying a miniature plant (seibutsu) on its back, representing a microscopic organism.
Word Web
Challenge
Try to explain the concept of '微生物' to someone using only analogies from nature that are visible to the naked eye, like how ants work together in a colony or how mold grows on fruit, to convey the idea of many small things working together.
Word Origin
The word '微生物' is a compound word formed from two kanji: '微' (bi) and '生物' (seibutsu). '微' means 'tiny,' 'minute,' or 'subtle.' '生物' means 'living thing' or 'organism.' Therefore, '微生物' literally translates to 'tiny living things.' This term was likely coined in the late 19th or early 20th century as scientific understanding of microscopic life grew, following similar coinages in Western languages.
Original meaning: Tiny living thing.
Sino-Japanese (composed of Chinese characters)Cultural Context
When discussing microorganisms, be mindful of contexts related to disease or contamination. In health-related discussions, it's important to use accurate and sensitive language. For example, referring to 'pathogenic microorganisms' rather than just 'germs' in a formal setting.
In English-speaking cultures, microorganisms are often discussed in terms of health (germs, bacteria, viruses, infections) or in scientific contexts (biology, ecology, biotechnology). The perception can sometimes be negative, focusing on disease, but there's also growing awareness of beneficial microbes like the gut microbiome.
Practice in Real Life
Real-World Contexts
Health and Medicine
- 病原性微生物 (byōgensei biseibutsu)
- 抗生物質 (kōseibusshitsu - antibiotic)
- 感染 (kansenshō - infection)
- 衛生 (eisei - hygiene)
Food Science and Production
- 発酵食品 (hakkō shokuhin - fermented food)
- 保存 (hozon - preservation)
- 乳酸菌 (nyūsan-kin - lactic acid bacteria)
- 酵母 (kōbo - yeast)
Environmental Science
- 浄化 (jōka - purification)
- 分解 (bunkai - decomposition)
- 土壌 (dojō - soil)
- 生態系 (seitaikei - ecosystem)
Biology and Research
- 微生物学 (biseibutsu-gaku - microbiology)
- 培養 (baiyō - culture)
- 検出 (kenshutsu - detection)
- ゲノム (genome)
Daily Life and Hygiene
- 手洗い (tearai - handwashing)
- 清潔 (seiketsu - cleanliness)
- germs (implied)
- dirt (implied)
Conversation Starters
"What are some everyday examples of microorganisms we encounter?"
"How do microorganisms affect our health, both positively and negatively?"
"Can you name any foods that rely on microorganisms for their production?"
"What role do microorganisms play in the natural environment?"
"What is the difference between a bacterium and a virus?"
Journal Prompts
Write about a time you learned something new about microorganisms and how it changed your perspective.
Describe the importance of handwashing and cleanliness in preventing the spread of harmful microorganisms.
Imagine you are a microbiologist discovering a new type of microorganism. What would you name it and what would be its unique characteristics?
Reflect on the balance between beneficial and harmful microorganisms in our bodies and how we can maintain it.
Discuss the potential impact of microorganisms on future technologies, such as in medicine or environmental cleanup.
Frequently Asked Questions
10 questions'微生物' (biseibutsu) is the general term for all microscopic organisms, including bacteria, viruses, fungi, and other single-celled life forms. '細菌' (saikin) specifically refers to bacteria, which are just one type of microorganism. So, all bacteria are microorganisms, but not all microorganisms are bacteria.
No, by definition, '微生物' are microscopic organisms. This means they are too small to be seen with the naked eye and require a microscope for observation. This characteristic is emphasized by the kanji '微' (bi), meaning 'tiny' or 'minute'.
Yes, viruses are generally included under the umbrella term '微生物' (biseibutsu) in Japanese, even though their classification as 'living' is debated. They are microscopic and studied within the field of microbiology. Other terms like 'ウイルス' (uirusu) are used specifically for viruses.
Beneficial microorganisms are found in foods like yogurt, cheese, soy sauce, miso, and natto due to fermentation. Harmful ones can cause food spoilage or illness. Our own bodies, especially the gut, are home to trillions of microorganisms that aid digestion and immunity.
'微生物' is a standard term used in both formal and informal settings, but it leans towards scientific and educational contexts. In very casual conversation, people might use terms like 'germs' or specific types like 'bacteria' if they are discussing health. However, '微生物' is the correct and widely understood term in general discussions about microscopic life.
Japanese nouns generally do not have distinct plural forms. '微生物' can refer to one microorganism or many, depending on the context. If you need to emphasize plurality, you can use quantifiers like '多くの' (ōku no - many) or 'いくつかの' (ikutsuka no - several), for example, '多くの微生物' (many microorganisms).
Microorganisms are fundamental to ecosystems. They play crucial roles in decomposition, nutrient cycling (like nitrogen and carbon cycles), and are the base of many food chains. They are also involved in processes like photosynthesis and the breakdown of pollutants.
はい、例えば、「手洗いは微生物による感染を防ぐために重要です。」(Te-arai wa biseibutsu ni yoru kansen o fusegu tame ni jūyō desu.) This translates to: 'Handwashing is important to prevent infections caused by microorganisms.'
The word is composed of two kanji: '微' (bi), meaning 'tiny' or 'minute,' and '生物' (seibutsu), meaning 'living thing' or 'organism.' So, it literally means 'tiny living thing.' This term was adopted to describe microscopic life forms.
Yes, phrases like '目に見えない微生物' (me ni mienai biseibutsu - invisible microorganisms) emphasize their microscopic nature. '微生物の世界' (biseibutsu no sekai - the world of microorganisms) refers to the study or realm of these organisms. Also, '微生物の力' (biseibutsu no chikara - the power of microorganisms) is used to describe their significant impact.
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Summary
微生物 (biseibutsu) refers to microscopic organisms like bacteria and viruses, which are vital for life on Earth and studied extensively in science.
- Microorganisms are tiny life forms, invisible to the naked eye.
- They include bacteria, viruses, and fungi.
- Essential for ecosystems, health, and food production.
- Studied in biology and medicine.
Break Down the Kanji
Remember that '微' (bi) means 'tiny' or 'minute,' and '生物' (seibutsu) means 'living thing.' This direct translation, 'tiny living things,' is a powerful mnemonic for understanding the core meaning of '微生物'.
Context is Key
While '微生物' is a general term, pay attention to the context. Is it discussing beneficial microbes in food, harmful ones causing disease, or their role in ecosystems? This will help you understand the specific implication.
Clear Syllables
Pronounce each syllable of 'bi-sei-butsu' distinctly. Avoid rushing or blending them too much. This ensures clarity when speaking.
Connect to Examples
Link the word '微生物' to concrete examples like bacteria in yogurt, mold on bread, or germs on your hands. This makes the abstract concept more tangible and easier to remember.
Example
土の中にはたくさんの微生物が生きています。
Related Content
This Word in Other Languages
More nature words
～上
B1Above; on top of; up.
〜の上
A2On top of, above, upon.
豊か
B1Abundant; rich; plentiful (na-adjective).
〜に従って
B1According to, in conformity with, as (something happens).
酸性雨
B1Acid rain.
営み
B1Activity; daily life; undertaking (e.g., life's activities).
順応する
B1To adapt; to adjust; to conform.
~を背景に
B1Against the backdrop of; with...as background.
空気
A2air
大気汚染
B1Air pollution; the presence of harmful substances in the air.
