bishop's weed

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bishop's weed

n.
1. See goutweed.
2. A chiefly Mediterranean annual plant (Ammi majus) in the parsley family, grown as a source of psoralen compounds used in medicine and as an ornamental for its compound umbels of small white flowers.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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