outboard

Definitions of outboard
1

adj located away from the midline of a vessel or aircraft

“the outboard section of a wing”
outboard rigging”
Synonyms:
portable
of a motor designed to be attached to the outside of a boat's hull
Antonyms:
inboard
located within the hull or nearest the midline of a vessel or aircraft

n internal-combustion engine that mounts at stern of small boat

Synonyms:
outboard motor
Type of:
ICE, internal-combustion engine
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

n a motorboat with an outboard motor

Synonyms:
outboard motorboat
Type of:
motorboat, powerboat
a boat propelled by an internal-combustion engine

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