Dictionary
a•lys•sum
Pronunciation: (u-lis'um), [key]—
n.
1. any of various plants belonging to the genus
Alyssum, of the mustard family, having clusters of small yellow or white flowers.
2. any of several related plants of the genus
Aurinia, as
A. saxatilis, a widely cultivated species with yellow flowers.
3. See
sweet alyssum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.