rhus

noun
\ˈrüs \
plural rhuses or rhus

Definition of rhus 

First Known Use of rhus

circa 1611, in the meaning defined above

History and Etymology for rhus

New Latin, from Latin, sumac, from Greek rhous

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The first known use of rhus was circa 1611

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More Definitions for rhus

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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