Cotswold \Cots"wold`\ (k?ts"w?ld`), n. [Cot a cottage or hut + wold an open country.] An open country abounding in sheepcotes, as in the Cotswold hills, in Gloucestershire, England. {Cotswold sheep}, a long-wooled breed of sheep, formerly common in the counties of Gloucester, Hereford, and Worcester, Eng.; -- so called from the Cotswold Hills. The breed is now chiefly amalgamated with others.