Ester Definition

ĕstər
esters
noun
Any of a class of compounds derived from an oxyacid, usually resulting from the reaction of an oxyacid and an alcohol with the elimination of water.
American Heritage
An organic compound, comparable to an inorganic salt: generally, HR (inorganic acid) + R1OH (alcohol) = RR1 (ester) + H2O (water) or RCOOH (organic acid) + R1OH = RCOOR1 (ester) + H2O.
Webster's New World

Other Word Forms of Ester

Noun

Singular:
ester
Plural:
esters

Origin of Ester

  • German short for Essigäther Essig vinegar (from Middle High German ezzich) (from Old High German ezzīh) (from Latin acētum ak- in Indo-European roots) Äther ether (from Latin aethēr ether)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Contraction or abstraction of German Essigäther (“ethyl acetate”), from Essig (“vinegar”) (from Latin acetum) and Äther (“ether”). See ether for more.

    From Wiktionary

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