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avenaceous

[av-uh-ney-shuh s]
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adjective Botany.
  1. of or like oats.
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Origin of avenaceous

1765–75; < Latin avēnāceus, equivalent to avēn(a) oats + -āceus -aceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018