Drift

The lateral deviation of the bullet caused by the resistance of the air and the rotation188of the bullet oh its longer axis; also a pa age in a mine, horizontal or nearly so, forming a drain for carrying off the water; also a steel implement for clearing the vent when choked; in aeronautics, the drifting of an aeroplane due to currents, etc. … Gas. — A gas propelled by a favoring wind. … iggs Maohine-gnn. — An American aeroplane gun similar to the Lewis gun in that it has a self-contained magazine, which holds one hundred cartridges, and is operated by recoil, instead of by gas.