ragweed
pronunciation
How to pronounce ragweed in British English: UK [ˈrægwi:d]
How to pronounce ragweed in American English: US [ˈræɡˌwid]
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- Noun:
- widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
- any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
Word Origin
- ragweed (n.)
- 1790, from ragged + weed (n.); so called from shape of the leaves. Applied to a different plant (ragwort) from 1650s.
Example
- 1. Dating sediments using ragweed and nuclear fallout
- 2. Whether the trigger is pollen or ragweed , suffering during allergy season is no fun .
- 3. For 75 percent of those 35 million , ragweed is the primary allergen , he added .
- 4. People with ragweed allergies are more likely to have a reaction to echinacea , and there have been cases of anaphylactic shock .
- 5. The findings correlate with analysis last year by the national wildlife federation that found ragweed growth rates and pollen counts increased with global warming .