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blue grass Definition
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blue grass
noun(blue-grass)any of several grasses (genus Poa) of which some have bluish-green culms; especially : kentucky bluegrass
blue grass
noun(blue-grass)country music played on unamplified stringed instruments (such as banjo, fiddle, guitar, and mandolin) and characterized by free improvisation and close usually high-pitched harmony
blue grass
geographical name(blue-grass)region of central Kentucky where Kentucky bluegrass abounds that is noted for the breeding of fine horses
blue grass
noun(blue-grass)an Old World pasture and meadow grass (Poa pratensis) naturalized in North America and often used in lawns —called also bluegrass
blue grass
noun(blue-grass)any of a genus (Sisyrinchium) of New World herbs of the iris family having grasslike foliage and blue, yellow, or white flowers
blue grass
noun(blue-grass)a forage grass (Poa trivialis) of Eurasia and northern Africa that is naturalized in North America