the violently poisonous seed of an African climbing plant, Physostigma venenosum, of the legume family, the active principle of which is physostigmine.
DON’T VACILLATE! VANQUISH THIS WORD OF THE DAY QUIZ!
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Question 1 of 7
What does “vacillate” mean?
Also called ordeal bean.
Origin of Calabar bean
1875–80; named after Calabar, Nigeria
Words nearby Calabar bean
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for Calabar bean
/ (ˌkæləˈbɑː, ˈkæləˌbɑː) /
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 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012