poison oak


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poison oak

n.
1. Either of two plants, Toxicodendron pubescens, a shrub of the southeast United States, or T. diversilobum, a shrub or vine of western North America, having compound leaves with three lobed or toothed leaflets, and causing a rash on contact.
3. A skin rash caused by contact with one of these plants.

poison oak

n
1. (Plants) either of two North American anacardiaceous shrubs, Rhus toxicodendron or R. diversiloba, that are related to the poison ivy and cause a similar rash. See also sumach1
2. (Plants) (not in technical use) another name for poison ivy

poi′son oak′


n.
either of two North American shrubs of the cashew family, Rhustoxicodendron, of the eastern U.S., or R.diversiloba, of the Pacific coastal area, with leaves resembling those of poison ivy: may cause allergic dermatitis when touched.
[1735–45, Amer.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.poison oak - dermatitis resulting from contact with a poison oak plant
Rhus dermatitis - contact dermatitis resulting from contact with plants of the genus Toxicodendron
2.poison oak - climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berriespoison oak - climbing 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
genus Toxicodendron, Toxicodendron - in some classifications: comprising those members of the genus Rhus having foliage that is poisonous to the touch; of North America and northern South America
poisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism
Translations

poison oak

n (bot) roble venenoso
References in classic literature ?
It seemed as if all local varieties of trees and vines had conspired to weave the leafy roof--maples, big madronos and laurels, and lofty tan-bark oaks, scaled and wrapped and interwound with wild grape and flaming poison oak. Saxon drew Billy's eyes to a mossy bank of five-finger ferns.
According to Poison-Ivy.org, a website which also provided information about poison oak and poison sumac, the rash from poison ivy may first appear as just a slight itchy spot.
If you are, you're probably also sensitive to poison sumac and poison oak. Only about 15% of people who are sensitive to poison ivy will experience a severe reaction.
However, for the often sole female, urination meant breaking away from the file, finding a private location away from curious eyes, unbuckling and dropping your 70-pound rucksack strategically near a strong looking tree trunk, visually clearing the target area for possible poison oak and ivy (very important in Ontario!), undressing, exposing and then relieving yourself.
According to Tec Labs, Smith's wife, Evelyn, accidentally discovered that Tecnu would cleanse poisonous plant oils after she was exposed to poison oak in the family's backyard.
While some common, acute exposure-related ACD can be straightforward to diagnose, such as poison ivy and poison oak, other exposure-related ACD can be more difficult, especially as the "culprits" vary over time.
pretty, that was me, that was my foot that broke the poison oak, my
* Poison ivy, poison oak, and poison sumac contain oils that cause rashes to appear in 12 to 72 hours after contact.
The company last spring added three products to its Itch Eraser franchise, each formulated to instantly eliminate the itch from allergic reactions to three plant families: poison ivy, poison oak and poison sumac.
Below were brushy pockets of poison oak and scattered openings rising to a lower grassy ridge about 700 yards away.
The city is discouraging public access to the park at this time due to extensive poison oak and blackberry thickets and few legal public access points.
Clinical Repair Cream is ideal for those suffering from dry, itchy skin and Extra Strength Spray is formulated for use on contagious or hard-to-reach areas, such as rashes from poison oak or ivy.