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细菌 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
细菌xìjūnbacteriumHSK 6, n, 19 strokes, rank #5311, Hard
细菌xìjūngermHSK 6, n, 19 strokes, rank #5311, Hard
xìjūn(xi4jun1)xi jun T4
  1. 1bacterium
  2. 2germ
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March 24, 2026

细菌(細菌)xìjūn(xi4jun1)

细菌 (xì jūn) refers to microscopic, single-celled organisms that can be found in various environments. They play essential roles in processes like decomposition and digestion but can also cause diseases in humans and animals. Commonly used in scientific contexts, this term emphasizes the dual nature of bacteria as both beneficial and harmful.

Strokes19Frequency#5311DifficultyHard
Cultural note

In Chinese culture, there is a growing awareness of the importance of bacteria in health, especially with the rise of probiotics and discussions about gut health. The distinction between beneficial and harmful bacteria is increasingly relevant in public health conversations.

Memory tip

Imagine a tiny 'xi' (细) figure with a magnifying glass examining a 'jun' (菌) of bacteria. The thin structure of the character 细 (xi) can remind you of the delicate and small nature of bacteria, while '菌' looks like a small cluster, hinting at multiple germs.

Meanings of 细菌

xìjūn(xi4jun1)
1bacterium
2germ
Exercise 1 of 2

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About 细菌

细菌Simplified
細菌Traditional
19Strokes
—Radical
名词míngcínoun (n.)Part of Speech
#5311Frequency Rank
HSK 2.0L6HSK 3.0L6IntermediateHSKKL3CEFRC1

Podcast: 细菌

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Podcast: 细菌

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AI study notes for 细菌

Quick Contrast

病毒 (bìngdú) refers to viruses, which are different from bacteria in that they require a host cell to replicate and are generally smaller; use 细菌 for organisms that can live independently.

Usage Notes

A common mistake is confusing 细菌 with related terms like 病菌 (bìng jūn), which specifically means 'pathogenic bacteria.' This word is neutral and can be used in both formal scientific discussions and informal conversations about health. Be mindful of the fourth tone in 细 (xì) to avoid mispronunciation.

HSK Study Tips

As an HSK 6 word, 细菌 connects well with other scientific vocabulary and health-related terms. Students should focus on understanding its implications in discussions about microbiology and public health, as well as its usage in various contexts.

Common Mistakes

Learners often mispronounce 细菌 by confusing the tones, saying 'xi3 jun1' instead of the correct 'xi4 jun1.' Additionally, some might use 细菌 interchangeably with 病菌, which is incorrect when referring to non-pathogenic bacteria.

AI-enhanced 2026-03-24

Pronunciation of 细菌

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Component characters

细xìthin or slender
HSK 48 strokes纟
View full entry
菌jūngerm
11 strokes艹
View full entry

How to say bacterium in Chinese

“bacterium” in Chinese is细菌xìjūn

细菌 (xì jūn) refers to microscopic, single-celled organisms that can be found in various environments. They play essential roles in processes like decomposition and digestion but can also cause diseases in humans and animals. Commonly used in scientific contexts, this term emphasizes the dual nature of bacteria as both beneficial and harmful.

When to use 细菌

A common mistake is confusing 细菌 with related terms like 病菌 (bìng jūn), which specifically means 'pathogenic bacteria.' This word is neutral and can be used in both formal scientific discussions and informal conversations about health. Be mindful of the fourth tone in 细 (xì) to avoid mispronunciation.

细菌 or something close to it

病毒 (bìngdú) refers to viruses, which are different from bacteria in that they require a host cell to replicate and are generally smaller; use 细菌 for organisms that can live independently.

What learners get wrong

Learners often mispronounce 细菌 by confusing the tones, saying 'xi3 jun1' instead of the correct 'xi4 jun1.' Additionally, some might use 细菌 interchangeably with 病菌, which is incorrect when referring to non-pathogenic bacteria.

Write 细菌

细
菌

Practice writing 细菌 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar patterns of 细菌

细菌 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). It carries 2 related meanings, each with its own usage notes below. The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.

Exercise 1 of 4

Fill the gap

Type the missing word. Pinyin works; then pick the character.

温牛奶是____理想的滋生地。

Warm milk is the ideal breeding ground for bacteria.

Example sentences for 细菌 (6)

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1
温牛奶是细菌理想的滋生地。

Wēn niúnǎi shì xìjūn lǐxiǎng de zī shēng dì。

Warm milk is the ideal breeding ground for bacteria.
2
把所有东西都彻底洗净以避免细菌污染.

bǎ suǒyǒu dōngxi dōu chèdǐ xǐ jìng yǐ bìmiǎn xìjūn wūrǎn.

Wash everything thoroughly to avoid contamination with bacteria.
3
乳酸细菌产生的酸足以使乳蛋白质凝固.

rǔ suān xìjūn chǎnshēng de suān zúyǐ shǐ rǔ dànbáizhì nínggù.

Acid production of lactic acid bacteria is sufficient to coagulate milk proteins.
4
你让陌生人把他们满口细菌的口舔你的子宫?

nǐ ràng mòshēng rén bǎ tāmen mǎn kǒu xìjūn de kǒu tiǎn nǐ de zi gōng?

You let strangers put their germ - filled mouths on your uterus?
5
在细菌系统中运输活性是通过膜蛋白实现的.

zài xìjūn xìtǒng zhōng yùnshū huó xìng shì tōngguò mó dàn bái shíxiàn de.

In bacterial systems transport activities are performed by membrane proteins.
6
细菌性叶斑病的典型症状是叶子上出现圆斑 、 角斑或水浸状叶面.

xìjūn xìng xié bān bìng de diǎnxíng zhèngzhuàng shì yèzi shàng chūxiàn yuán bān、 jiǎo bān huò shuǐ jìn zhuàng xié miàn.

For bacterial leaf spots , the classical symptoms are circular, angular, watersoaked areas on the leaves.

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Frequently asked questions about 细菌

细菌 refers to all types of bacteria, while 病菌 specifically denotes pathogenic bacteria that cause diseases.

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