Oatgrass

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of various grasses resembling oats:; Arrhenatherum species countable, uncountable
  2. 2
    Any of various grasses resembling oats:; Avenula species countable, uncountable
  3. 3
    Any of various grasses resembling oats:; Danthonia californica, California oatgrass countable, uncountable
  4. 4
    Any of various grasses resembling oats:; Trisetum species countable, uncountable

Etymology

From oat + grass.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.