defensive back
US /dɪˈfensɪv bæk/
UK /dɪˈfensɪv bæk/
1.
a player in American or Canadian football whose main role is to prevent the opposing team from completing passes or making long runs
:
•
The defensive back intercepted the pass, turning the tide of the game.
•
Good coverage by the defensive backs is crucial for a strong defense.