Medical Dictionary
Main Entry:
rhus Pronunciation:
'rüs Function:
noun 1 capitalized : a genus of shrubs and trees of the cashew family (Anacardiaceae)that are native to temperate and warm regions, have compound trifoliolate or pinnate leaves, and include some (as poison ivy, poison oak, and poison sumac) producing irritating oils that causedermatitis —see
SUMAC, TOXICODENDRON 2 plural rhuses or rhus : any shrub or tree of the genus
Rhus
