ragweed – מילון אנגלי-אנגלי
ragweed
n.
species of weed from the daisy family (produces pollen that often causes allergic reactions)
Ragweed
ragweed
Noun
1. widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
(synonym) ragwort, tansy ragwort, benweed, Senecio jacobaea
(hypernym) weed
(member-holonym) Senecio, genus Senecio
2. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
(synonym) ambrosia, bitterweed
(hypernym) weed
(hyponym) common ragweed, Ambrosia artemisiifolia
(member-holonym) genus Ambrosia
Ragweed
(n.)
A common American composite weed (Ambrosia artemisiaefolia) with finely divided leaves; hogweed.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
Ragweed
Any of a number of weedy composite herbs that produce a pollen that is a frequent cause of allergies. Of all allergy sufferers in the United States, 75% are allergic to ragweed.