Library / English Dictionary

POISON OAK

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

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

Synonyms:

markweed; poison ivy; poison mercury; poison oak; Rhus radicans; Toxicodendron radicans

Classified under:

Nouns denoting plants

Hypernyms ("poison oak" is a kind of...):

poisonous plant (a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism)

Holonyms ("poison oak" is a member of...):

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)

Sense 2

Meaning:

Dermatitis resulting from contact with a poison oak plant

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("poison oak" is a kind of...):

Rhus dermatitis (contact dermatitis resulting from contact with plants of the genus Toxicodendron)

Credits