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

  • adj. Of or resembling onion, garlic, or similar plants of the genus Allium, particularly in taste and smell.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Smelling or tasting of garlic or onion.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to the genus Allium, or garlic, onions, leeks, etc.; having the smell or taste of garlic or onions.

from The Century Dictionary and Cyclopedia

  • Pertaining to or having the properties of the genus Allium, which includes the onion and garlic.
  • Having the peculiar smell or taste of the onion: applied specifically to minerals which contain arsenic and emit a garlic-like odor when heated on charcoal before the blowpipe.

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

  • adj. smelling of onions or garlic
  • adj. of or pertaining to the botanical genus Allium


Latin allium, garlic + -aceous.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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  • For spuds and for meat he's voracious
    But Grandad makes haste to turn gracious
    And claim he is sated
    If it's intimated
    The next dish could be alliaceous.

    July 9, 2016

  • "When the candle was extinguished, the incandescent wick must provide the right temperature for reducing some of the white arsenic to the elemental state, generating the 'alliaceous odour' he detected."

    James C. Whorton, The Arsenic Century: How Victorian Britain Was Poisoned at Home, Work, and Play (New York: Oxford Univ. Press, 2010)

    October 11, 2015