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Meaning of peppergrass

pep•per•grass

Pronunciation: (pep'ur-gras", -gräs"), [key]
— n.
  1. any pungent plant belonging to the genus Lepidium, of the mustard family, used as a potherb or salad vegetable. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.