castor bean

Origin of castor bean

1810–20, Americanism; short for castor-oil bean
Related formscas·tor-bean, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of castor bean


British Dictionary definitions for castor bean

castor bean

noun US and Canadian
  1. another name for castor-oil plant
  2. the seed of this plant
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