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1. A shrub or small tree (Toxicodendron vernix) of eastern North American wetlands, having compound leaves and greenish-white berries and causing a rash on contact.
2. A skin rash caused by contact with this plant.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
poi·son i·vy, poison oak , poison sumac (poy'zŏn ī'vē, ōk, sūmak)
1. See: Toxicodendron
2. Common name for the cutaneous eruption caused by contact with these species of Toxicodendron.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Patient discussion about poison sumac
Q. is poison ivy or sumac contagious
A. if you scratch the rash and it has open sores,the pus from the sores can spread to other parts of the body and to other people as well,More discussions about poison sumac
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