#external-combustion_engine  a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy
  supertype:  #heat_engine  any engine that makes use of heat to do work
  subtype:  #steam_engine__steamengine  external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder

No statement uses or specializes #external-combustion_engine; click here to add one.