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.
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.
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.
Marie used aloe for sunburn, burns from hot oil, skin sores, diaper rash, bedsores and even poison oak rash.
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.
Poison ivy, along with poison oak and poison sumac, might cause more misery than any other plant in North America; up to three out of every four people are sensitive to it.
Unfortunately, it also brings some less-desirable plants with it as well, such as poison ivy, poison oak, and poison sumac.
She describes how she fell in love with the beauty, air, animals, expanse, and nature of country life and the experiences she's had with her dogs, coyotes, roosters, sheep, cats, poison oak, and other aspects.
Other rules include: Trash, household items, building materials, roots, bushes, briars, and harmful plants, like poison ivy, poison oak or poison sumac will not be accepted; brush is limited to branches with a diameter no larger than 6 inches.
I HATE POISON OAK," I muttered as a buck bird-dogged a doe through the brush in front of me.