吡 (bǐ): pyridine (chemistry prefix)

Meanings

1 pyridine (chemistry prefix)
2 used in transliterating chemical names

Characters

吡

bǐ

phonetic component for pyridine-type chemical names

Examples

HSK 7-9

吡啶是一种常见的有机化学溶剂。

Bǐdìng shì yī zhǒng chángjiàn de yǒujī huàxué róngjì.

Pyridine is a common organic chemistry solvent.

HSK 7-9

吡咯是五元杂环化合物。

Bǐluò shì wǔ yuán záhuán huàhéwù.

Pyrrole is a five-membered heterocyclic compound.

Tips

usage

吡 is not used as a standalone word but appears as the first character in chemistry terms: 吡啶 (bǐdìng, pyridine), 吡咯 (bǐluò, pyrrole), 吡嗪 (bǐqín, pyrazine). It functions as a phonetic prefix in chemical nomenclature.

Components

radical

口 kǒu

mouth

Mouth radical on the left signals 吡 as a sound-related or transliteration character. In modern chemistry it transliterates the syllable pyr- in pyridine 吡啶 (bǐdìng). Mouth radical is the standard choice for syllables imported from foreign technical vocabulary.

phonetic

比 bǐ

compare

比 supplies the sound exactly - bǐ with matching tone - a clean transparent phonetic loan. Same 比 phonetic produces 批 (pī), 毕 (bì), 庇 (bì), 妣 (bǐ), all sharing the bilabial onset and i-vowel. The combined char marks chemistry transliterations.