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Niger seed

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noun
  1. the black seed of a tropical African composite plant, Guizotia abyssinica, yielding an oil used as food, in the manufacture of soap, etc.

Origin of Niger seed

First recorded in 1885–90
Also called ramtil.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for niger seed

Niger seed

noun
  1. another name for ramtil (def. 2)
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