poison sumac
nounDefinition of poison sumac
: a swamp shrub (Toxicodendron vernix synonym Rhus vernix) chiefly of the eastern U.S. and Canada that has pinnate leaves, greenish flowers, and greenish white berries and produces an irritating oil
— called also poison dogwood
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More Definitions for poison sumac
poison sumac
nounEnglish Language Learners Definition of poison sumac
: a common bush in the eastern U.S. and Canada that causes a very itchy and painful rash on your skin if you touch it
See the full definition for poison sumac in the English Language Learners Dictionary
poison sumac
nounKids Definition of poison sumac
: a shrub or small tree related to poison ivy that can cause an itchy painful rash when touched
poison sumac
noun
poison su·mac
| \ -ˈs(h)ü-ˌmak
\
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Medical Definition of poison sumac
: an American swamp shrub of the genus Rhus (R. vernix synonym Toxicodendron vernix) that has smooth pinnate leaves, greenish flowers, and greenish white berries and produces an irritating oil
— called also poison dogwood