Calabar bean Hear it!

Calabar bean definition

Calabar· bean

the large, brown, poisonous seed of a woody, leguminous tropical African vine (Physostigma venenosum) used in medicine as a source of physostigmine

Etymology: after Calabar, name of a river & town in S Nigeria

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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