WordReference Random House Unabridged Dictionary of American English © 2026
peren′nial rye′grass.
WordReference Random House Unabridged Dictionary of American English © 2026- Plant BiologySee under ryegrass.
rye•grass
(rī′gras′, -gräs′),USA pronunciation n.
- Plant Biologyany of several European grasses of the genus Lolium, as L. perenne (perennial ryegrass), grown for forage in the U.S.
- rye1 + grass 1740–50
'perennial ryegrass' also found in these entries (note: many are not synonyms or translations):