Useful english dictionary. 2012.
Poison oak — is a form of "contact dermatitis" or inflammation of the skin resulting from chemicals produced from the poison oak plant contacting the skin. The chemicals cause an immune reaction producing redness, itching and blistering of the skin … Medical dictionary
Poison oak — The name Poison oak refers to various species of the genus Toxicodendron that grow in North America:* Western Poison oak ( Toxicodendron diversilobum or Rhus diversiloba ), found only on the Pacific Coast of North America, ranging from southern… … Wikipedia
poison oak — noun uncount a plant of the western U.S. that makes your skin red and painful if you touch it … Usage of the words and phrases in modern English
poison oak — noun 1. dermatitis resulting from contact with a poison oak plant • Hypernyms: ↑Rhus dermatitis 2. climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating … Useful english dictionary
poison oak — 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. [1735… … Universalium
Poison ivy — taxobox name = Toxicodendron radicans regnum = Plantae unranked divisio = Angiosperms unranked classis = Eudicots unranked ordo = Rosids ordo = Sapindales familia = Anacardiaceae genus = Toxicodendron species = T. radicans binomial =… … Wikipedia
poison ivy — 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. See poison oak. 3. the rash caused by touching poison ivy. [1775 85, Amer.] * * * Either of… … Universalium
Coast Live Oak — Taxobox name = Coast Live Oak image width = 240px image caption = Coast Live Oak foliage with new spring growth regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Fagaceae genus = Quercus sectio = Lobatae… … Wikipedia
White oak — White White (hw[imac]t), a. [Compar. {Whiter} (hw[imac]t [ e]r); superl. {Whitest}.] [OE. whit, AS. hw[imac]t; akin to OFries. and OS. hw[=i]t, D. wit, G. weiss, OHG. w[=i]z, hw[=i]z, Icel. hv[=i]tr, Sw. hvit, Dan. hvid, Goth. hweits, Lith.… … The Collaborative International Dictionary of English
Rhus diversiloba — western poison oak, a species of tree found in western North America that causes rhus dermatitis … Medical dictionary
