اسم ( noun )
• (1) تعریف: the influence, or amount of influence, of wind on the course of a projectile, or an adjustment in aiming to counteract this influence.
• (2) تعریف: a disturbance of air caused by the passage of a fast-moving object.
• (3) تعریف: the difference in a firearm between the diameter of the projectile fired and that of the bore of the firearm.