Dictionary

ragweed

noun rag·weed \-ˌwēd\

: any one of a group of North American plants that release a lot of pollen into the air and that can cause allergic reactions in some people

Full Definition of RAGWEED

:  any of various chiefly North American weedy composite herbs (genus Ambrosia) that produce highly allergenic pollen

Illustration of RAGWEED

First Known Use of RAGWEED

1790
RAGWEED Defined for Kids

ragweed

noun rag·weed \ˈrag-ˌwēd\

Definition of RAGWEED for Kids

:  a common weed with pollen that irritates the eyes and noses of some people
Medical Dictionary

ragweed

noun rag·weed \ˈrag-ˌwēd\

Medical Definition of RAGWEED

:  any of various chiefly North American weedy herbaceous plants comprising the genus Ambrosia and producing highly allergenic pollen responsible for much hay fever and asthma: as a :  an annual weed (A. artemisiifolia) with finely divided foliage that is common on open or cultivated ground in much of North America b :  a coarse annual (A. trifida) with some or all of the leaves usually deeply and palmately 3-cleft or 5-cleft—called also great ragweed

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