a play in which the ball is downed after having been kicked into the end zone by the opposing team or having been recovered or intercepted there, or in which it has been kicked beyond the end zone. Compare safety(def. 6a).
touch·back (tŭch'bāk') n.
Football A play in which the defensive team recovers and downs the ball behind its own goal line after the ball has been kicked or passed there by the team on offense. No points are scored, and the ball is put back in play by the recovering team on its own 20-yard line.