acrolein

[uh-kroh-lee-in]
noun Chemistry.
a yellow, flammable liquid, C 3 H 4 O, having a stifling odor, usually obtained by the decomposition of glycerol: used chiefly in the synthesis of commercial and pharmaceutical products.
Also called acraldehyde, acrylaldehyde, acrylic aldehyde.


Origin:
1855–60; < Latin ācr- (stem of ācer) sharp + olē(re) to smell + -in2

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World English Dictionary
acrolein (əˈkrəʊlɪɪn)
 
n
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]

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Example sentences
Cigarette smoke and automobile exhaust contain acrolein.
Acrolein causes burning of the nose and throat and can damage the lungs.
Acrolein has low water solubility compared to formaldehyde and purges out of a
  deionized water impinger.
There are no adequate human studies of the carcinogenic potential of acrolein.
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