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Entry 1 sense Webster, 1913

Ray grass

/(rā" grȧs`)/ · Ray· grass · IPA
01 A perennial European grass (Lolium perenne); -- called also rye grass, and red darnel. See Darnel, and Grass.
  1. 1.
    A perennial European grass (Lolium perenne); -- called also rye grass, and red darnel. See Darnel, and Grass.(Bot.) Also: rye grass, red darnel See: Darnel, Grass
Phrases & compounds
Italian ray grass — See Darnel, and Grass.