Pronunciation: (blOO'gras", -gräs"),[key] —n. 1. any grass of the genus Poa, as the Kentucky bluegrass, P. pratensis, having dense tufts of bluish-green blades and creeping rhizomes.
2. country music that is polyphonic in character and is played on unamplified stringed instruments, with emphasis esp. on the solo banjo.
3. the Bluegrass.See Bluegrass Region.