Putting green n. (Golf) The green, or plot of smooth turf, surrounding a hole. "The term putting green shall mean the ground within twenty yards of the hole, excepting hazards."
... have been expended on cricket grounds and golf greens when an application of clay top-dressing would have put the whole thing to rights at the cost of a few shillings. One committee had artificial wells made on every "putting green" of their golf course, in order to have water handy for keeping the turf cool and green. What better receptacle for water could they have found than a top-dressing of half an inch of loam or clay, retaining as it does every drop of moisture ... — A Cotswold Village • J. Arthur Gibbs