Moving from place to place; changing place, or able to effect change of (its own) place: as, a locomotive animal.Having the power to produce motion, or to move (something else) from place to place: as, a locomotive organ of the body; a locomotive engine.Of or pertaining to locomotion; locomotory.n. A steam-engine which travels on wheels turned by its own power; specifically, an engine designed and adapted to travel on a railway; a railroad-engine.n. Geared locomotives having toothed driving-wheels, the teeth of which engage a rack, are used for steep grades in mountain railways.