Word.ws English Dictionary

western poison oak

western poison oak noun: a vine or small shrub native to western North America, Toxicodendron diversilobum, which exudes a toxic oil containing urushiol that causes a skin rash.

Noun

western poison oak (plural western poison oaks)

  1. A vine or small shrub native to western North America, Toxicodendron diversilobum, which exudes a toxic oil containing urushiol that causes a skin rash.

Forms of western poison oak

pluralwestern poison oaks

Origin of western poison oak

From western + poison oak.

Questions about western poison oak

What does western poison oak mean?
Western poison oak means a vine or small shrub native to western North America, Toxicodendron diversilobum, which exudes a toxic oil containing urushiol that causes a skin rash.
What part of speech is western poison oak?
Western poison oak is a noun.
What is the plural of western poison oak?
The plural of western poison oak is western poison oaks.

Words near western poison oak in the dictionary

  1. Western pattern diets
  2. western pleasure
  3. western plum
  4. western plums
  5. western poison ivy
  6. western poison oak
  7. western poison oaks
  8. western prickly juniper
  9. western prickly junipers
  10. Western Province
  11. Western provinces

Source and license

Adapted from Wiktionary: western poison oak (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “western poison oak.” Word.ws, https://word.ws/western_poison_oak. Based on Wiktionary, CC BY-SA 4.0.