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acrolein n. 丙烯醛 丙烯醛 acrolein n 1: a pungent colorless unsaturated liquid aldehyde made from propene [synonym: {propenal}, {acrolein}] Acrolein \A*cro"le*in\, n. [L. acer sharp ol[=e]re to smell.]
(Chem.) A limpid, colorless, highly volatile liquid, obtained by the dehydration of glycerin, or the destructive distillation of neutral fats containing glycerin. Its vapors are intensely irritating. --Watts. [1913 Webster]
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