(aka: "putting green") a green which is separate from the golf course and is designated for short game &/or putting practice. Example: "Before I play a new course I like to spend half a hour on the putting green so that I know what to expect when I get on the course."
Area maintained like an actual 'green', but is not part of the golf course. Golfers use the practice green to warm up before playing.
Green set up for putting practice.
Green set up to practice putting.
A green set aside for practice putting.
Place for working on your putting.