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Dictionary

Words, grammatical forms and meanings linked to the ontology.

poison-ivy en · NOUN

Etymology

From poison + ivy.

Meanings

  1. (uncountable) 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.