Hypertext Webster Gateway: "touchback"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Touchback \Touch"back`\, n. (G)
The act of touching the football down by a player behind his
own goal line when it received its last impulse from an
opponent; -- distinguished from safety touchdown.
From WordNet (r) 1.7 (wn)
touchback
n : (American football) a play in which the opposing team has
kicked the football into your end zone
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