#outboard_motor__outboard  internal-combustion engine that mounts at stern of small boat
  supertype:  #internal-combustion_engine__ICE  a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine
  part:  #screw_propeller__screw  a propeller with several angled blades that rotates to push against water or air

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