Wordnet 3.0
ADJECTIVE (2)
1.
of or pertaining to the botanical genus Allium;
- Example: "onions, leeks, garlic, chives are alliaceous plants"2.
smelling of onions or garlic;
The Collaborative International Dictionary of English v.0.48:
Alliaceous \Al`li*a"ceous\, a.
Of or pertaining to the genus Allium, or garlic, onions,
leeks, etc.; having the smell or taste of garlic or onions.
[1913 Webster]
WordNet (r) 3.0 (2006):
alliaceous
adj 1: of or pertaining to the botanical genus Allium; "onions,
leeks, garlic, chives are alliaceous plants"
2: smelling of onions or garlic