名詞 bluegrass:

1. any of various grasses of the genus Poa
   同義詞：blue grass
2. an area in central Kentucky noted for it bluegrass and thoroughbred horses
   同義詞：Bluegrass Country, Bluegrass Region
3. a type of country music played at a rapid tempo on banjos and guitars

blue.grass

n.（名詞）
Also blue grass Any of various grasses of the genusPoa, including many valuable lawn and pasture plants, such as Kentucky bluegrass, and also some weeds.
也作 blue grass 藍草：早熟禾 屬的各種草，包括許多有價值的草坪和牧場植物，如肯塔基藍草，也指同樣一些種子
Music A type of folk music that originated in the southern United States, typically played on banjos and guitars and characterized by rapid tempos and jazzlike improvisation.
【音樂】 藍草音樂：一種起源于美國南方的民間音樂，通常用班卓琴或吉他演奏，特色為音樂輕快和象爵士樂那樣即興演奏