二醇

èrchún
noun

Meanings

  1. 1 glycol
  2. 2 diol (organic chemistry)

Examples

HSK 7-9
Yǐ èrchún shì chángyòng de fángdòng jì.
Ethylene glycol is a common antifreeze.
HSK 7-9
Bǐng'èrchún guǎngfàn yòngyú huàzhuāngpǐn héshí pǐn.
Propylene glycol is widely used in cosmetics and food.

Tips

memory
(èr - 'two') + (chún - 'alcohol') = 'di-ol' literally. The naming mirrors English chemistry: 乙二醇 = ethyl + di + ol = ethylene glycol.

Stroke Order

èr
chún