also: バック・スクリーン
noun
batter's eye screen; centerfield screen
Baseball term for the dark screen in center field that helps batters see the ball. A wasei-eigo word derived from English 'back screen'.
wasei-eigo (Japanese-coined English), from back screen
バックスクリーンにボールが当たった。
The ball hit the batter's eye screen.
新しい球場のバックスクリーン
The new stadium's centerfield screen is very large.