Main Entry: wind·age

Pronunciation: \ˈwin-dij\

Function: noun

Etymology: ¹wind

Date: circa 1710

1 a : the space between the projectile of a smoothbore gun and the surface of the bore b : the difference between the diameter of the bore of a muzzle-loading rifled cannon and that of the projectile cylinder
2 a : the amount of sight deflection necessary to compensate for wind displacement in aiming a gun b (1) : the influence of the wind in deflecting the course of a projectile (2) : the amount of deflection due to the wind
3 : the surface exposed (as by a ship) to the wind