putting green

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The area at the end of a golf course fairway in which the hole is placed, having more closely mowed turf than the rest of the course.
• noun An area in which to practice putting.

from The Century Dictionary.

• noun That part of a golfing-ground which surrounds a hole: it is usually carefully prepared and preserved.

from the GNU version of the Collaborative International Dictionary of English.

• (Golf) The green, or plot of smooth turf, surrounding a hole.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun golf The area of a golf course nearest the hole, with a smoother surface to make putting easier.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an area of closely cropped grass surrounding the hole on a golf course