a Eurasian plant, Hesperis matronalis, of the mustard family, having loose clusters of four-petalled purple or white fragrant flowers.
Also called dame's violet.
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British Dictionary definitions for dame's violet
dame's rocket or damewort
/ (ˈdeɪmˌwɜːt) /
a Eurasian hairy perennial plant, Hesperis matronalis, cultivated in gardens for its mauve or white fragrant flowers: family Brassicaceae (crucifers)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012