alliaceous
1. [ adjective ] tasting or smelling of onions or garlic
Synonyms: garlicky
Examples:

"snails in a garlicky sauce"

Related terms: pungent odorous
2. [ adjective ] of or pertaining to the botanical genus Allium
Examples:

"onions, leeks, garlic, chives are alliceaous plants"

Related terms: botany Allium
3. [ adjective ] smelling of garlic or onions
Related terms: malodorous