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sea oats

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noun
  1. a tall grass, Uniola paniculata, of coastal areas of southeastern North America, having as its inflorescence a densely crowded panicle, used to control sand erosion.
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Origin of sea oats

1890–95; Americanism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018