Definition of Ragweed
Ragweed: Any of several weedy composite herbs that produce a pollen to which many people are allergic. Of all allergy sufferers in the US, 75 percent are allergic to ragweed.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 3/19/2012
Drug Medical Dictionary of Terms by Letter
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Allergies & Asthma
Improve treatments & prevent attacks.