Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun great_ragweed

1 sense of great ragweed

Sense 1
great ragweed, Ambrosia trifida -- (a coarse annual with some leaves deeply and palmately three-cleft or five-cleft)
       => 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)