poison ivy
See also: poison-ivy
English
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Poison_Ivy_Leaves.jpg/220px-Poison_Ivy_Leaves.jpg)
Noun
poison ivy (countable and uncountable, plural poison ivies)
- Any of three ivy-like species of Toxicodendron, known for their ability to cause an itching rash and blistering for most people, through urushiol, an oil that is a skin irritant.
Usage notes
The name is often spelled "poison-ivy" to indicate that it is not a true ivy or Hedera.
Hyponyms
- (ivy-like plant producing skin irritant): Lua error in Module:taxlink at line 68: Parameter "noshow" is not used by this template. (Asian poison ivy), Toxicodendron radicans (eastern poison ivy), Toxicodendron rydbergii (western poison ivy)
Translations
one of several ivy-like urushiol-producing plants
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