机(动)车

Locomotive \Lo"co*mo`tive\, 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.

{Consolidation locomotive}, a locomotive having four pairs of
connected drivers.

{Locomotive car}, a locomotive and a car combined in one
vehicle; a dummy engine. [U.S.]

{Locomotive engine}. Same as {Locomotive}, above.

{Mogul locomotive}. See {Mogul}.