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Related to hoarhound: horehound
1. a downy perennial herbaceous Old World plant, Marrubium vulgare, with small white flowers that contain a bitter juice formerly used as a cough medicine and flavouring: family Lamiaceae (labiates)
2. water horehound another name for bugleweed
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.