inboard

adj

1. (not-comparable)Situated within the hull of a vessel.
2. (not-comparable)Positioned nearer to the centre line of a vessel.

   “The Airbus A380 only has thrust reversers on its inboard engines.”

noun

1. An engine located within the hull of a ship.

   “Coordinate term: outboard”

2. A boat with such an engine.

   “Coordinate term: outboard”

verb

1. To discount a product in order to increase sales.