Botany. belonging to the genus Allium (formerly the family Alliaceae).: Compare allium.
having the odor or taste of garlic, onion, etc.
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How to use alliaceous in a sentence
An ethereal liquid, lighter than water, having an aromatic odour, slightly alliaceous.
Arsenic, when vaporized, may be known by its peculiar alliaceous odor.
Arsenic also gives its peculiar alliaceous odor, which is so characteristic that it can be easily detected.
The peculiar alliaceous flavour that belongs to them is well known.
Many wild bees (Andrena) are distinguished by their pungent alliaceous smell.An Introduction to Entomology: Vol. II (of 4) | William Kirby
British Dictionary definitions for alliaceous
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
tasting or smelling like garlic or onions
of, relating to, or belonging to the Alliaceae, a family of flowering plants that includes the genus Allium
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