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Calabar bean

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noun

the violently poisonous seed of an African climbing plant, Physostigma venenosum, of the legume family, the active principle of which is physostigmine.

Also called ordeal bean.

Origin:
1875–80; named after Calabar, Nigeria

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Calabar bean is always a great word to know.

So is flibbertigibbet. Does it mean:

a stew of meat, vegetables, potatoes, etc.

a chattering or flighty, light-headed person.

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Collins

World English Dictionary

Calabar bean (ˌkæləˈbɑː, ˈkæləˌbɑː)

—n
	the dark brown very poisonous seed of a leguminous woody climbing plant, Physostigma venenosum of tropical Africa, used as a source of the drug physostigmine

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage

Medical Dictionary

Calabar bean Cal·a·bar bean (kāl'ə-bär)
n.
The poisonous seed of a tropical western African woody vine in the pea family and source of the drug physostigmine.

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