poison ivy

noun

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.

Similar
markweedpoison oakToxicodendron radicansRhus radicans
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounpoison ivy (countable and uncountable, plural poison ivies)

plural poison ivies

  1. countableuncountableAny 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.
  2. countableproscribeduncountableAny species of Toxicodendron that can cause a rash, including poison oak and poison sumac.

Synonyms & antonyms

nounclimbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact

Similar
markweedpoison oakToxicodendron radicansRhus radicans
Broader
poisonous plant
Also see
markweedpoison oak

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Arabic لَبْلَاب
  • لَبْلَاب (lablāb)one of several ivy-like urushiol-producing plants
Basque huntz pozoitsu
  • huntz pozoitsuone of several ivy-like urushiol-producing plants
Catalan heura metzinosa
  • heura metzinosaone of several ivy-like urushiol-producing plants
Czech jedovatec kořenující
  • jedovatec kořenujícíone of several ivy-like urushiol-producing plants
Dutch gifsumak
  • gifsumakone of several ivy-like urushiol-producing plants
Esperanto toksikodendro
  • toksikodendroone of several ivy-like urushiol-producing plants
Finnish myrkkymuratti
  • myrkkymurattione of several ivy-like urushiol-producing plants
French sumac vénéneux, herbe à puce
  • sumac vénéneuxone of several ivy-like urushiol-producing plants
  • herbe à puceone of several ivy-like urushiol-producing plants
German Giftsumach
  • Giftsumachone of several ivy-like urushiol-producing plants
Irish eidhneán nimhe
  • eidhneán nimheone of several ivy-like urushiol-producing plants
Korean 덩굴옻나무
  • 덩굴옻나무 (deongguronnamu)one of several ivy-like urushiol-producing plants
Portuguese hera venenosa
  • hera venenosaone of several ivy-like urushiol-producing plants
Russian ядови́тый плющ
  • ядови́тый плющ (jadovítyj pljušč)one of several ivy-like urushiol-producing plants
Spanish hiedra venenosa, yedra ponzoñosa
  • hiedra venenosaone of several ivy-like urushiol-producing plants
  • yedra ponzoñosaone of several ivy-like urushiol-producing plants
Swedish klättersumak
  • klättersumakone of several ivy-like urushiol-producing plants
Tagalog kanipay, yedra
  • kanipayone of several ivy-like urushiol-producing plants
  • yedraone of several ivy-like urushiol-producing plants
Turkish zehirli sarmaşık
  • zehirli sarmaşıkone of several ivy-like urushiol-producing plants
Yiddish סם־בלעטלעך
  • סם־בלעטלעך (sam-bletlekh)one of several ivy-like urushiol-producing plants
Cite this entry
APA

poison ivy. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/poison%20ivy

MLA

“poison ivy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/poison%20ivy. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “poison ivy,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/poison%20ivy.

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