Dictionary

rhus

noun \ˈrüs\
plural rhus·es or rhus

Definition of RHUS

:  sumac 2

Origin of RHUS

New Latin, from Latin, sumac, from Greek rhous
First Known Use: circa 1611
Medical Dictionary

rhus

noun \ˈrüs\

Medical Definition of RHUS

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 cause dermatitis—see sumac, toxicodendron
2
plural rhuses or rhus :  any shrub or tree of the genus Rhus

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