| 单词 | ester |
| 释义 | Word Frequency ester(ˈɛstə) noun chemistry any of a class of compounds produced by reaction between acids and alcohols with the elimination of water. Esters with low molecular weights, such as ethyl acetate, are usually volatile fragrant liquids; fats are solid esters Word origin C19: from German, probably a contraction of Essigäther acetic ether, from Essig vinegar (ultimately from Latin acētum) + Äther ether |
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