backstop

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.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.