Date: circa 1909 an imaginary line in football that is parallel to the goal lines and tangent to the nose of the ball laid on the ground and marks the position of the ball at the start of each down
LINE OF SCRIMMAGE
Meaning of LINE OF SCRIMMAGE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012