noun Chemistry.
  1. a yellow, flammable liquid, C3H4O, having a stifling odor, usually obtained by the decomposition of glycerol: used chiefly in the synthesis of commercial and pharmaceutical products.

Origin of acrolein

1855–60; < Latin ācr- (stem of ācer) sharp + olē(re) to smell + -in2
Also called acraldehyde, acrylaldehyde, acrylic aldehyde. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for acrolein

Historical Examples of acrolein

British Dictionary definitions for acrolein


  1. a colourless or yellowish flammable poisonous pungent liquid used in the manufacture of resins and pharmaceuticals. Formula: CH 2 :CHCHO

Word Origin for acrolein

C19: from Latin ācer sharp + olēre to smell + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012