Definitions for: Backstop

[n] a fence or screen (as behind home plate in baseball)
[v] act as a backstop, as in baseball

Webster (1913) Definition: Back"stop`, n.
1. In baseball, a fence, prop. at least 90 feet behind the
home base, to stop the balls that pass the catcher; also,
the catcher himself.

2. In rounders, the player who stands immediately behind the
striking base.

3. In cricket, the longstop; also, the wicket keeper.

See Also: fence, fencing, play