Dictionary
Thesaurus
Encyclopedia
Translator
Web
Related Searches
Nearby Words
Definition of poison ivy - 7 dictionary results
Poison ivey
Get the Answers You're Looking For. Poison ivey
www.RightHealth.com
Get Poison Ivy Relief Now
+40% off Poison Ivy Treatments! Top Brands In Stock. Free/Flat Ship
www.LuckyVitamin.com/PoisonIvy

poison ivy

 
Use poison ivy in a Sentence
–noun
1. a vine or shrub, Rhus radicans, having trifoliate leaves and whitish berries and causing severe dermatitis when touched by persons sensitive to it.
2. poison oak.
3. the rash caused by touching poison ivy.
Origin:
1775–85, Americanism
Poison ivey
Get the Answers You're Looking For. Poison ivey
www.RightHealth.com
Get Poison Ivy Relief Now
+40% off Poison Ivy Treatments! Top Brands In Stock. Free/Flat Ship
www.LuckyVitamin.com/PoisonIvy

poison oak

 
–noun
either of two shrubs, Rhus toxicodendron, of the eastern U.S., or R. diversiloba, of the Pacific coast of North America, resembling poison ivy and causing severe dermatitis when touched by persons sensitive to them.
Also called poison ivy.

Origin:
1735–45, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To poison ivy
poison ivy  
n.   In both senses also called poison oak.

  1. A North American shrub or vine (Toxicodendron radicans syn. Rhus radicans) that has compound leaves with three leaflets, small green flowers, and whitish berries and that causes a rash on contact.

  2. A skin rash caused by contact with this plant.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Medical Dictionary

Main Entry: poison ivy
Pronunciation: -'I-vE
Function: noun
1 a : a climbing plant of the genus Rhus (R. radicans syn. Toxicodendronradicans) that is especially common in the eastern and central U.S., that has leaves in groups of three, greenish flowers, and white berries, and that produces an acutely irritating oil causing ausually intensely itching skin rash b : any of several plants closely related to poison ivy; especially : POISON OAK 1b
2 : a skin rash produced by poison ivy

Main Entry: poison oak
Pronunciation: -'Ok
Function: noun
1 : any of several plants included in the genus Rhus or sometimes in the genusToxicodendron that produce an irritating oil like that of poison ivy: a : a bushy plant (R. diversiloba syn. T. diversilobum) of the Pacific coast b : a bushy plant (R. toxicodendron syn. T. pubescens) of the southeastern U.S.
2 : POISON IVY1a
3 : a skin rash produced by poison oak
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source
Medical Dictionary

poison ivy n.
A North American shrub or vine that has compound leaves with three leaflets, small green flowers, and whitish berries and that causes a rash on contact. Also called poison oak.

poison oak n.

  1. Either of two shrubs, Rhus toxicodendron of the southeast United States or R. diversiloba of western North America, related to poison ivy and causing a rash on contact.

  2. See poison ivy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Search another word or see poison ivy on Thesaurus | Reference
FacebookTwitterFollow us:
Partner Sites:
Ask AnswersEviteExpediaHotelsHotwireLife123LiveDailyMy Way