poison ivy

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See also: poison-ivy

English[edit]

poison ivy leaves
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Noun[edit]

poison ivy (countable and uncountable, plural poison ivies)

  1. 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[edit]

The name is often spelled "poison-ivy" to indicate that it is not a true ivy or Hedera.

Hyponyms[edit]

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