/blooh"gras', -grahs'/ , 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 .
[ 1745-55, Amer.; BLUE + GRASS ]