[ rahy-gras, -grahs ]

  1. any of several European grasses of the genus Lolium, as L. perenne(perennial ryegrass ), grown for forage in the U.S.

Origin of ryegrass

First recorded in 1740–50; rye1 + grass

Words Nearby ryegrass

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use ryegrass in a sentence

British Dictionary definitions for rye-grass


  1. any of various grasses of the genus Lolium, esp L. perenne, native to Europe, N Africa, and Asia and widely cultivated as forage crops. They have a flattened flower spike and hairless leaves

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012