A locomotive or engine is a rail transport vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th century to distinguish between mobile and stationary steam engines. A locomotive has no payload capacity of its own, and its sole purpose is to move the train along the tracks. In contrast, some trains have self-propelled payload-carrying vehicles. These are not normally considered locomotives, and may be referred to as multiple units, motor coaches or railcars.
locomotive a. Moving from place to place; changing place, or able to change place; as, a locomotive animal.
locomotive a. Used in producing motion; as, the locomotive organs of an animal.
locomotive n. A locomotive engine; a self-propelling wheel carriage, especially one which bears a steam boiler and one or more steam engines which communicate motion to the wheels and thus propel the carriage, -- used to convey goods or passengers, or to draw wagons, railroad cars, etc. See Illustration in Appendix.
locomotive (f) n. locomotive, engine of a train which pulls the carriages along the tracks, engine
locomotive n. engine of a train which pulls the carriages along the tracks adj. of locomotion, of movement; serving to move or put in motion; able to move independently from one place to another, self-propelled; of or pertaining to the engine of a train; of or pertaining to travel adj. locomotive