ragweed
any of the composite plants of the genus Ambrosia, the airborne pollen of which is the most prevalent cause of autumnal hay fever, as the common North American species, A. trifida(great ragweed, or giant ragweed ) and A. artemisiifolia.
Origin of ragweed
1Words Nearby ragweed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use ragweed in a sentence
North America experiences tree pollen in the springtime, grass pollen in the summer and weed pollen, primarily ragweed, in the fall.
Every season except summer is getting shorter, a sign of trouble for people and the environment | Kasha Patel | September 22, 2021 | Washington PostThe first half of September typically features the peak of ragweed pollen, if you’re sniffling these days.
Updated forecast: Showers and storms overnight with heavy downpours | Ian Livingston, Jason Samenow | September 9, 2021 | Washington PostOf our ragweed not much can be set down that is complimentary, except that its name in the botany is Ambrosia, food of the gods.
A Year in the Fields | John BurroughsGolden ragweed blazed in all the fields, and the swallows began to assemble for their journey south.
Lives of the Fur Folk | M. D. Haviland"Like a ragweed," she laughed, taking him into the kitchen, where she brought him a chair from the sitting-room.
The Biography of a Prairie Girl | Eleanor Gates
It is bounded on the north by goldenrod, on the south by ragweed, on the east by asthma and the pollen of anemophylous plants.
Shandygaff | Christopher MorleyEvery year thousands of ragweed and groundsel seeds must be blown on to the shale-heap, but they never manage to grow there.
The Romance of Plant Life | G. F. Scott Elliot
British Dictionary definitions for ragweed
/ (ˈræɡˌwiːd) /
any plant of the chiefly North American genus Ambrosia, such as A. artemisiifolia (common ragweed): family Asteraceae (composites). Their green tassel-like flowers produce large amounts of pollen, which causes hay fever: Also called: ambrosia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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