from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See Calabar bean.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The Calabar bean.
from the GNU version of the Collaborative International Dictionary of English
- n. See Calabar bean, under Calabar.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. dark brown highly poisonous seed of the calabar-bean vine; source of physostigmine and used in native witchcraft
So called from its alleged use as a test for witchcraft.(American Heritage® Dictionary of the English Language, Fourth Edition)
It was formerly used by the natives in trials for witchcraft. (Wiktionary)