[1] : The Collaborative International Dictionary of English v.0.48

alyssum \alys"sum\ .ali^s"su^m, n. nl., fr. gr.
   'a`lysson, name of a plant, perh. fr. 'a priv. + ly`ssa
   raging madness. bot.
   a genus of cruciferous plants; madwort. the sweet alyssum
   alyssum maritimum, cultivated for bouquets, bears small,
   white, sweet-scented flowers.
   1913 webster
see also:
sweet alyssum alyssum maritimum 

[2] : WordNet (r) 2.0

alyssum
     n 1: any garden plant of the genus alyssum having clusters of
          small yellow or white flowers syn: madwort
     2: a genus of the family cruciferae syn: genus alyssum
see also:
madwort genus alyssum 

Alyssum >> A Words
Alyssum, definition of term: Alyssum
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