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A colorless, flammable, poisonous liquid aldehyde, C3H4O, having an acrid odor and vapors irritating to the eyes.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Elements & Compounds) a colourless or yellowish flammable poisonous pungent liquid used in the manufacture of resins and pharmaceuticals. Formula: CH2:CHCHO
[C19: from Latin ācer sharp + olēre to smell + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(əˈkroʊ li ɪn)

a pungent yellow liquid, C3H4O, usu. obtained by the decomposition of glycerol.
[1855–60; < Latin ācr- (s. of ācer) sharp + olē(re) to smell + -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.acrolein - a pungent colorless unsaturated liquid aldehyde made from propeneacrolein - a pungent colorless unsaturated liquid aldehyde made from propene
aldehyde - any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Glycerol produces the toxin acrolein, though the levels produced are lower than conventional cigarettes.
In addition, acrolein and furfural may be released to the environment and contaminate grapes during incomplete combustion processes (petrochemical fuels, wood, cigarette smoking among others) (KENNISON et al., 2007; BURCHAM, 2017).
did not find any association between P[M.SUP.3]5, acrolein, formaldehyde, or carbon monoxide exposure and lung function [38].
The Group 2B carcinogen acetaldehyde was found alongside acrolein and carbon monoxide.
The initial treatment protocol for this patient's ALL included cyclophosphamide, which is metabolized to acrolein, a known urotoxin associated with hemorrhagic cystitis and bladder cancer.
For example, positive associations of propionaldehyde with ASD persisted following adjustment for traffic-related air toxics like acrolein, ethyl benzene, xylenes, and diesel particulate matter.
However, in the case of large consumption of alcohol, not only acetaldehyde can be accumulated but also acrolein through oxidation of lipid can be increased in liver.
The other HAPs in the plywood composite wood products and Maximum Achievable Controlled Technology standards that would be of concern at the dryers and presses include acetaldehyde, acrolein, phenol, and propanal.
The major components for this resin are phthalic anhydride and 2-propenal (acrolein).
The neurotoxin, called acrolein, is produced within the body after nerve cells are damaged, increasing pain and triggering a cascade of biochemical events thought to worsen the injury's severity.