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earthnut

[urth-nuht]
noun
  1. any of various roots, tubers, or underground growths, as the peanut and the truffle.
  2. any of the plants producing these.
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Origin of earthnut

before 900; Middle English erthenote, Old English eorthnutu. See earth, nut
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for earthnut

earthnut

noun
  1. Also called: pignut a perennial umbelliferous plant, Conopodium majus, of Europe and Asia, having edible dark brown tubers
  2. any of various plants having an edible root, tuber, underground pod, or similar part, such as the peanut or truffle
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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