/ Dictionary / Index B bitter cress: Meaning and Definition of Find definitions for: bit'ter cress' Pronunciation: [key] any plant belonging to the genus Cardamine, of the mustard family, having usually pinnate leaves and clusters of white, pink, or purple flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bittercress (Thesaurus) bitter cassava bitter dock Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language