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.


Last Editorial Review: 3/19/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.