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butter bean

or but·ter·bean

noun
  1. a variety of small-seeded lima bean, Phaseolus lunatus, grown in the southern U.S.
  2. Midland and Southern U.S. any type of lima bean.
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Origin of butter bean

First recorded in 1810–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for butter bean

butter bean

noun
  1. a variety of lima bean that has large pale flat edible seeds and is grown in the southern US
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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