əˈlisəm noun
Etymology: New Latin, from Greek alysson plant believed to cure rabies, from neuter of alyssos curing rabies, from a- a- (II) + -lyssos (from lyssa rage, rabies) — more at lyssa
1. capitalized : a genus of European and Asiatic herbs (family Cruciferae) having small usually yellow racemose flowers
2. -s
a. : a plant of the genus Alyssum
b. : sweet alyssum