poison-ivy

noun

A woody vine plant in the family Anacardiaceae (Toxicodendron radicans or Rhus toxicodendron), well-known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people.

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Meanings

nounpoison-ivy (uncountable)
  1. uncountableA woody vine plant in the family Anacardiaceae (Toxicodendron radicans or Rhus toxicodendron), well-known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people.

Origin

From poison + ivy.

Full word history & related roots →
Cite this entry
APA

poison-ivy. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/poison-ivy

MLA

“poison-ivy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/poison-ivy. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “poison-ivy,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/poison-ivy.

Source: poison-ivy on Wiktionary, CC BY-SA 4.0.