羟 (qiǎng) — hydroxyl (chemical radical)
Definition
羟 (qiǎng) is a bound form used only in chemistry as part of 羟基, meaning the hydroxyl group (–OH). It never stands alone; always pair it with 基.
bound form
hydroxyl (chemical radical)
Examples
- 。Hán yǒu qiǎng jī de huà hé wù hěn duō.There are many compounds that contain a hydroxyl group.
- 羟。Zhè ge fǎn yìng huì chǎn shēng qiǎng zì yóu jī.This reaction will produce hydroxyl radicals.
- 。qiǎng Jī shì zhòng yào de guān néng tuán.The hydroxyl group is an important functional group.
Origin
Sound + meaning六书liùshū
形声xíngshēngMost characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.
This origin belongs to the traditional form 羥; 羟 is its simplified writing.
Sound part声符shēngfú
巠
巠jīng羥
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.
The traditional form 羥 pairs 羊 (sheep, goat) with 巠 as a sound part; the simplified 羟 is a shorthand.
Appears in
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