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alliaceous

[al-ee-ey-shuh s]
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adjective
  1. Botany. belonging to the genus Allium (formerly the family Alliaceae).Compare allium.
  2. having the odor or taste of garlic, onion, etc.
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Origin of alliaceous

1785–95; < Latin alli(um) garlic + -aceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for alliaceous

alliaceous

adjective
  1. of or relating to Allium, a genus of plants that have a strong onion or garlic smell and often have bulbs: family Alliaceae . The genus occurs in the N hemisphere and includes onion, garlic, leek, chive, and shallot
  2. tasting or smelling like garlic or onions
  3. of, relating to, or belonging to the Alliaceae, a family of flowering plants that includes the genus Allium
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Word Origin

C18: from Latin allium garlic; see -aceous
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012