poison ivy (redirected from poison ivies)

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.

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poison ivy

Noun

a North American climbing plant that causes an itching rash if it touches the skin

Thesaurus

Noun	1.	poison ivy - dermatitis resulting from contact with the poison ivy plant; "my poison ivy is drying up" Rhus dermatitis - contact dermatitis resulting from contact with plants of the genus Toxicodendron
	2.	poison ivy - 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 markweed, poison mercury, Rhus radicans, Toxicodendron radicans, poison oak 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