• WordNet 3.6
    • n acrolein a pungent colorless unsaturated liquid aldehyde made from propene
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Webster's Revised Unabridged Dictionary
    • n Acrolein (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.
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Century Dictionary and Cyclopedia
    • n acrolein A colorless limpid liquid, CH2CHCOH, having a disagreeable and intensely irritating odor, such as that noticeable after the flame of a candle has been extinguished and while the wick still glows. It is the aldehyde of the allyl series, and is obtained by distilling glycerin to which acid potassium sulphate or strong phosphoric acid has been added, also by the dry distillation of fatty bodies. It burns with a clear, luminous flame.
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Webster's Revised Unabridged Dictionary
L. acer, sharp + ol─ôre, to smell


In literature:

ACROLEIN, a light volatile limpid liquid obtained by the destructive distillation of fats.
"The Nuttall Encyclopaedia" by Edited by Rev. James Wood
The substance thereby formed is called 'acrolein.
"The Vitalized School" by Francis B. Pearson