羧 (suō): carboxyl (the chemical group -C…

Meanings

醋酸含有羧基。

Cùsuān hányǒu suōjī.

Acetic acid contains a carboxyl group.

氨基酸既有氨基又有羧基。

Ānjīsuān jì yǒu ānjī yòu yǒu suōjī.

Amino acids have both an amino group and a carboxyl group.

usage

A pure chemistry coinage. You meet it in 羧基 (carboxyl group) and 羧酸 (carboxylic acid). It has no everyday non-technical use.

radical

羊 yáng

sheep

The sheep radical, used here mainly as a structural and index element in this modern chemistry character rather than for meaning.

phonetic

夋 qūn

to retreat (phonetic element)

Supplies the sound, the same phonetic seen in 酸 (acid) and 梭. It points to the suō reading.

羧 suō