windage

wind·age  (wndj)

n.

1.

a. The effect of wind on the course of a projectile.

b. The point or degree at which the wind gauge or sight of a rifle or gun must be set to compensate for the effect of the wind.

c. The difference in a given firearm between the diameter of the projectile fired and the diameter of the bore of the firearm.

2. The disturbance of air caused by the passage of a fast-moving object, such as a railway train.

3. Nautical The part of the surface of a ship exposed to the wind.

Thesaurus

Noun	1.	windage - the retarding force of air friction on a moving object drag, retarding force - the phenomenon of resistance to motion through a fluid
	2.	windage - the space between the projectile of a smoothbore gun and the surface of the bore of the gun diam, diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumference
	3.	windage - exposure to the wind (as the exposed part of a vessel's hull which is responsible for wind resistance) wind exposure exposure - vulnerability to the elements; to the action of heat or cold or wind or rain; "exposure to the weather" or "they died from exposure";
	4.	windage - the deflection of a projectile resulting from the effects of wind wind deflection bending, deflexion, deflection - the property of being bent or deflected