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winter cress

noun
  1. any cress belonging to the genus Barbarea, of the mustard family, having lyrate leaves and yellow flowers.
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Origin of winter cress

First recorded in 1540–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for wintercress

wintercress

noun
  1. a bitter-tasting yellow-flowered perennial, Barbarea vulgaris, somewhat resembling mustard
  2. a commercial hybrid, Rorippa  ×  sterilis, between watercress and R. microphylla
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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