Definition of inboard in English:

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Pronunciation: /ˈɪnbɔːd/

adverb& adjective

1Within a ship, aircraft, or vehicle: [as adverb]: the spray was coming inboard now [as adjective]: the uncovered inboard engine
More example sentences
  • The speed is a result of their unusual design, and their horsepower - three 90-hp outboard motors (ship tenders have inboard engines and are not built for speed).
  • The report says those who may have been exposed are personnel who worked in the inboard underwing and the engine/undercarriage zones of the aircraft.
  • Under an ongoing joint research program of the marine industry, engine manufacturers, the Coast Guard, EPA and California, catalyst technology has so far only been tested on freshwater sterndrive and inboard engines.
1.1Towards the centre of a ship, aircraft, or vehicle: [as adverb]: move the clew inboard along the boom
More example sentences
  • The wheels moved backwards as the struts shortened up and then swung inboard, pulling clam shell covers with them.
  • The door is well done and opens inboard, as it should, but I would prefer the builder offer this as an option and include more useful features for fisherman such as fish boxes, a saltwater wash down pump and rod holders as standard features.
  • Columns are pulled inboard to create a circulation zone around the perimeter, and adjustable fabric baffles at the column line enable the room to be blacked out, acoustically dampened, and planned to simulate different stage layouts.


1A boat’s engine housed inside its hull.
Example sentences
  • Meanwhile, the state of California, through its powerful Air Resources Board, is moving toward requiring catalytic converters on marine sterndrives and inboards, ahead of the EPA.
  • Today, multilevel, multi-year limited warranties are standard on almost all outboard engines and a growing number of inboards, according to a survey by BoatU.S. (See charts at right.)
  • A variety of twin-engine options were offered on the Coastal 2800 over the nine years of production, including factory installed, 225-hp OMC Sea Drives and a variety of gasoline inboards, from 220 to 270 hp.
1.1A boat with an inboard engine.
Example sentences
  • The Blue Fin is still in rotation, but a 405-horsepower inboard with a speedometer and a sound system is the family boat of choice.
  • The IPS props - which are smaller than a standard prop configuration - are also in perfect horizontal alignment with the boat's bottom, unlike inboards whose typical seven-degree down angle wastes energy.
  • Some 56% of the boats used most often had propeller propulsion and of those boats with motors, nearly 60% were outboards and 26.7% were inboards.

For editors and proofreaders

Line breaks: in|board

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