rhus
noun
\ ˈrüs
\
\
plural rhuses
or rhus
Definition of rhus
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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