ray grass

== English == === Alternative forms === raygrass, ray-grass === Etymology === Uncertain. === Noun === ray grass (countable and uncountable, plural ray grasses) (archaic) A perennial European grass (Lolium perenne); ryegrass; red darnel. === References === “ray grass”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.