- engine - motor that converts thermal energy to mechanical work
--1 is a kind of motor
--1 has parts:
--1 has particulars:camshaft; gearing, gears, geartrain, power train, train aircraft engine; automobile engine; auxiliary engine, donkey engine; generator; heat engine; reaction-propulsion engine, reaction engine - engine - something used to achieve a purpose; "an engine of change"
--2 is a kind of causal agent, cause, causal agency
- locomotive, engine, locomotive engine, railway locomotive - a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
--3 is a kind of self-propelled vehicle
--3 is a member of train, railroad train
--3 has parts: fender, buffer, cowcatcher, pilot; footplate
--3 has particulars:choo-choo; diesel locomotive; dinky, dinkey; electric locomotive; iron horse; pilot engine; shunter; steam locomotive; switch engine, donkey engine; tank engine, tank locomotive; traction engine - engine - something used to achieve a purpose; "an engine of change"