A1 noun Neutro #2,786 mais comum

細菌

saikin /saikiɴ/

Microscopic single-celled organisms that can be found everywhere, including inside the human body. While some cause diseases, many are beneficial for health and the environment.

Exemplos

3 de 5
1

手を洗って、細菌をなくしましょう。

Let's wash our hands and get rid of bacteria.

2

この薬は特定の細菌に対して効果があります。

This medicine is effective against specific bacteria.

3

細菌が怖いから、よく掃除するよ。

I clean a lot because I'm scared of germs.

Família de palavras

Substantivo
細菌
Adjetivo
細菌性の
Relacionado
殺菌
💡

Dica de memorização

Look at the kanji: 細 (thin/small) and 菌 (fungus/germ). It literally means 'tiny germs' that you can't see without a microscope.

Quiz rápido

お腹が痛いのは、悪い___のせいかもしれません。

Correto!

A resposta correta é: 細菌

Exemplos

1

手を洗って、細菌をなくしましょう。

everyday

Let's wash our hands and get rid of bacteria.

2

この薬は特定の細菌に対して効果があります。

formal

This medicine is effective against specific bacteria.

3

細菌が怖いから、よく掃除するよ。

informal

I clean a lot because I'm scared of germs.

4

細菌の増殖速度は温度に依存します。

academic

The growth rate of bacteria depends on temperature.

5

食品工場では、細菌汚染を防ぐ対策が必要です。

business

Measures to prevent bacterial contamination are necessary in food factories.

Família de palavras

Substantivo
細菌
Adjetivo
細菌性の
Relacionado
殺菌

Colocações comuns

細菌が増える bacteria multiply
細菌を殺す to kill bacteria
細菌に感染する to be infected by bacteria
細菌性の病気 bacterial disease
有用な細菌 beneficial bacteria

Frases Comuns

細菌兵器

biological weapon

腸内細菌

gut flora / intestinal bacteria

細菌検査

bacterial test

Frequentemente confundido com

細菌 vs ウイルス

Bacteria are living organisms that can reproduce on their own, whereas viruses need a host cell to replicate.

細菌 vs カビ

Kabi refers to mold/fungi, which are multicellular and biologically more complex than single-celled bacteria.

📝

Notas de uso

Saikin is a scientific and neutral term. In casual contexts involving hygiene or illness, speakers often use 'baikin' (germs) or simply 'kin'.

⚠️

Erros comuns

Learners often use Saikin for viruses (uirusu) as well; remember that antibiotics only work on Saikin, not viruses.

💡

Dica de memorização

Look at the kanji: 細 (thin/small) and 菌 (fungus/germ). It literally means 'tiny germs' that you can't see without a microscope.

📖

Origem da palavra

A compound word formed from 'sai' (small/fine) and 'kin' (fungus/germ), used to translate the Western biological concept of bacteria.

Padrões gramaticais

Used as a common noun. Can be followed by the suffix -性 (sei) to create the adjective 'bacterial'.
🌍

Contexto cultural

Japan has a strong cultural emphasis on cleanliness, leading to many 'antibacterial' (抗菌 - kōkin) products being sold in stores.

Quiz rápido

お腹が痛いのは、悪い___のせいかもしれません。

Correto!

A resposta correta é: 細菌

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