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
Word origin
C18: from Latin allium garlic; see -aceous
alliaceous in American English
(ˌæliˈeɪʃəs)
adjective
1.
of a group of strong-smelling bulb plants of the lily family, including the onion, garlic, etc.