a grass, Poa pratensis, of the Mississippi valley, used for pasturage and lawns.
Origin of Kentucky bluegrass
First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for kentucky bluegrass
a Eurasian grass, Poa pratensis, grown for forage and naturalized throughout North America
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012