windage (n.)the retarding force of air friction on a moving object;
windage (n.)the space between the projectile of a smoothbore gun and the surface of the bore of the gun;
windage (n.)exposure to the wind (as the exposed part of a vessel's hull which is responsible for wind resistance);
Synonyms: wind exposure
windage (n.)the deflection of a projectile resulting from the effects of wind;
Synonyms: wind deflection
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