WordNet (r) 3.0 (2006):
bluegrass n 1: any of various grasses of the genus Poa [syn: bluegrass, blue grass] 2: an area in central Kentucky noted for it bluegrass and thoroughbred horses [syn: Bluegrass, Bluegrass Country, Bluegrass Region] 3: a type of country music played at a rapid tempo on banjos and guitars