alliaceous

[ al-ee-ey-shuh s ]
/ ˌæl iˈeɪ ʃəs /

adjective

Botany. belonging to the genus Allium (formerly the family Alliaceae). Compare allium.
having the odor or taste of garlic, onion, etc.

Origin of alliaceous

1785–95; < Latin alli(um) garlic + -aceous

British Dictionary definitions for alliaceous

alliaceous
/ (ˌælɪˈeɪʃəs) /

adjective

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

Word Origin for alliaceous

C18: from Latin allium garlic; see -aceous