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 (măd′wûrt′, -wôrt′)
1. A low-growing plant (Asperugo procumbens) with small blue flowers, native to Eurasia and naturalized in North America.
2. See alyssum.

[Sense 1, perhaps alteration (influenced by madder) of Dutch mede, madder + wort (from the use of A. procumbens to make a dye ). Sense 2, originally a name for various plants supposed to cure rabies, and later also for plants of the genus Alyssum : mad, rabid + wort (partial translation of Latin alyssum, from Greek alusson; see alyssum).]
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.


1. (Plants) a low-growing Eurasian boraginaceous plant, Asperugo procumbens, with small blue flowers
2. (Plants) any of certain other plants, such as alyssum
[C16: once alleged to be a cure for madness]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmædˌwɜrt, -ˌwɔrt)

a mat-forming plant, Aurinia saxatilis (or Alyssum saxatille), of the mustard family, having broadly rounded leaves and open clusters of pale yellow flowers.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.madwort - any garden plant of the genus Alyssum having clusters of small yellow or white flowersmadwort - any garden plant of the genus Alyssum having clusters of small yellow or white flowers
crucifer, cruciferous plant - any of various plants of the family Cruciferae
genus Alyssum, Alyssum - a genus of the family Cruciferae
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
With the United States concerned about a Russian military presence in Venezuela at a time when Washington wants Venezuelan President Nicolas Madwort to leave power, Trump told Putin "the United States stands with the people of Venezuela" and stressed he wanted to get relief supplies into the country, Sanders said.
and Ericameria nauseosa, cushion-like phlox Phlox spp., mock goldenweed Stenotus spp., clover Trifolium spp., madwort Alyssum spp., vetch Astragalus spp., western wheatgrass Pascopyrum smithii, bluebunch wheatgrass Pseudoroegneria spicata, needle-and-thread Hesperostipa comata, Idaho fescue Festuca idahoensis, Sandberg bluegrass Poa secunda and prairie junegrass Koeleria macrantha.