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1. Any of various chiefly Mediterranean weeds or ornamentals of the genus Alyssum in the mustard family, having racemes of white or yellow flowers. Also called madwort.
2. Any of various similar plants in the mustard family, especially sweet alyssum.
[New Latin Alyssum, genus name, from Latin alysson, kind of madder, from Greek alusson, a plant believed to cure rabies : a-, not; see a-1 + lussa, rabies; see wl̥kwo- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
[C16: from New Latin, from Greek alusson, from alussos (adj) curing rabies, referring to the ancient belief in the plant's healing properties]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. any of various plants of the mustard family, having gray leaves and clusters of small yellow or white flowers.
[1545–55; < New Latin; Latin alysson < Greek, neuter of ályssos curing (canine) madness, derivative of a- a-6lýssa madness]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||alyssum - any garden plant of the genus Alyssum having clusters of small yellow or white flowers|
|2.||Alyssum - a genus of the family Cruciferae|
dilleniid dicot genus - genus of more or less advanced dicotyledonous trees and shrubs and herbs
Brassicaceae, Cruciferae, family Brassicaceae, family Cruciferae, mustard family - a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives
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