ばい菌

• 読み: ばいきん
• ローマ字: baikin
• 漢字の分解: 菌 (kin) — fungus, germ, bacteria
• 発音: /bai.kiɴ/

意味

Germs; bacteria; a bug. Microorganisms that cause disease.

A colloquial noun for harmful microorganisms. More casual than 細菌 (saikin, bacteria) or 微生物 (biseibutsu, microorganism). Commonly used with children and in everyday hygiene contexts. The phrase ばい菌が入る (germs get in) is used when warning about wound infection. Also used as a cruel childhood insult (ばい菌扱い, treating someone like a germ/outcast), which has become a topic in bullying discussions.

例文

1. 手を洗わないとばい菌がついたままだよ。
2. 傷口からばい菌が入らないように消毒した。
3. 生肉にはばい菌がいるので十分に加熱してください。

使い方ガイド

場面: hygiene, health, children, daily life

トーン: casual

起源と歴史

From ばい (bai, from 黴 meaning mould/mildew) + 菌 (kin, fungus/germ). The first character is usually written in hiragana because the kanji 黴 is complex and uncommon.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal