locomotive β a self-propelled, vehicular engine, powered by steam, a diesel, or electricity, for pulling or, sometimes, pushing a train or individual railroad cars.
steam engine β an engine worked by steam, typically one in which a sliding piston in a cylinder is moved by the expansive action of the steam generated in a boiler.
train β Railroads. a self-propelled, connected group of rolling stock.
tank locomotive β a steam locomotive carrying its own fuel and water without the use of a tender.
appliance β An appliance is a device or machine in your home that you use to do a job such as cleaning or cooking. Appliances are often electrical.
diesel β noting a machine or vehicle powered by a diesel engine: diesel locomotive.
generator β a machine that converts one form of energy into another, especially mechanical energy into electrical energy, as a dynamo, or electrical energy into sound, as an acoustic generator.
instrument β a mechanical tool or implement, especially one used for delicate or precision work: surgical instruments.
motor β a comparatively small and powerful engine, especially an internal-combustion engine in an automobile, motorboat, or the like.
power plant β a plant, including engines, dynamos, etc., and the building or buildings necessary for the generation of power, as electric or nuclear power.
tool β an implement, especially one held in the hand, as a hammer, saw, or file, for performing or facilitating mechanical operations.
transformer β a person or thing that transforms.
turbine β any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as a fluid passing through and entirely filling a housing around the rotor.
weapon β any instrument or device for use in attack or defense in combat, fighting, or war, as a sword, rifle, or cannon.
agent β A chemical that has a particular effect or is used for a particular purpose can be referred to as a particular kind of agent.
apparatus β The apparatus of an organization or system is its structure and method of operation.
barrel β A barrel is a large, round container for liquids or food.
contrivance β If you describe something as a contrivance, you disapprove of it because it is unnecessary and artificial.
cylinder β A cylinder is an object with flat circular ends and long straight sides.
dynamo β A machine for converting mechanical energy into electrical energy; a generator.
fan β an enthusiastic devotee, follower, or admirer of a sport, pastime, celebrity, etc.: a baseball fan; a great fan of Charlie Chaplin.
horses β a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
implement β any article used in some activity, especially an instrument, tool, or utensil: agricultural implements.
means β to have in mind as one's purpose or intention; intend: I meant to compliment you on your work. Synonyms: contemplate.
mechanism β an assembly of moving parts performing a complete functional motion, often being part of a large machine; linkage.