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soybean

[soi-been]
noun
  1. a bushy Old World plant, Glycine max, of the legume family, grown in the U.S., chiefly for forage and soil improvement.
  2. the seed of this plant, used for food, as a livestock feed, and for a variety of other commercial uses.
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Origin of soybean

First recorded in 1795–1805; soy + bean
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for soybean

n.

1795, from soy + bean (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper