HyperDic: great_ragweed

English > 1 sense of the expression *great ragweed*:
NOUN	plant	great ragweed, Ambrosia trifida	a coarse annual with some leaves deeply and palmately three-cleft or five-cleft

English > *great ragweed*: 1 sense > noun 1, plant
Meaning	A coarse annual with some leaves deeply and palmately three-cleft or five-cleft .
Synonym	Ambrosia trifida
Broader	ragweed, ambrosia, bitterweed	Any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma