Definition of "locomotive" in English

noun

(rail transport) The power unit of a train that pulls the coaches or wagons.
(rare) A traction engine.
(slang) A cheer characterized by a slow beginning and a progressive increase in speed.
(archaic) Any of various early road vehicles, steam-powered, etc., forerunners of the modern car.
(economics) A country which drives the world economy by having a high level of imports, such as the United States.

adjective

Of or relating to locomotion.
Of or relating to the power unit of a train which does not carry passengers or freight itself.
Moving, or capable of motion.