ester

名词 n.
中文释义
英 /ˈɛstə/    美 /ˈɛstɚ/

英文释义

名词 n.
  1. A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond (i.e., carbonyl) joined via carbon to another oxygen atom.
    — To produce a test material containing at least 75 percent omega-3 polyunsaturates, the menhaden triglycerides are transesterified to produce fatty acid ethyl esters. The esters are reacted with urea dissolved in hot ethanol and the solution is cooled overnight.

词形变化

esters plural

词源

From German Ester, perhaps a contraction or abstraction of Essigäther (“ethyl acetate”), from Essig (“vinegar”) (from Latin acetum) and Äther (“ether”). See ether for more.
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