from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A colorless, flammable, poisonous liquid aldehyde, CH2CHCHO, having an acrid odor and vapors irritating to the eyes.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A pungent, acrid, poisonous liquid aldehyde, CH2=CH-CH=O, made by the destructive distillation of glycerol.

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a pungent colorless unsaturated liquid aldehyde made from propene


acr(id) + olein.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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