linebacker

n.

后卫球员；

复数：linebackers

1. A new or substitute offensive play called by the quarterback or a defensive formation called by a linebacker at the line of scrimmage as an adjustment to the opposing side's formation.
   改变打法一种在橄榄球争球线上作为就对方阵势的调整，由四分卫发令的新的或替代进攻打法，或由后卫发令的防守阵势

Linebacker II : a view from the rock
James Williams (Linebacker)
Injury to Star Linebacker Forces Jeannette to Adjust
The inflammasome--a linebacker of innate defense
Fault Tree Analysis of Bradley Linebacker
The Inflammasome — A Linebacker of Innate Defense — NEJM
The Bacteroides fragilis cell envelope: quarterback, linebacker, coach-or all three?
Patterns and Predictability: The Soviet Evaluation of Operation Linebacker II
The development of response selection accuracy in a football linebacker using video training
History-Making Effort Brown's Big Performance vs. Tennessee Vaults Linebacker into Class of Program's Elite