Pronunciation: (in'bôrd", -bōrd"), [key]
1. located nearer the longitudinal axis or center, as of an airplane: the inboard section of a wing.
2. located inside a hull or aircraft: a motorboat with an inboard engine.
3. (of a motorboat) having the motor inboard.
inside or toward the longitudinal axis or center of a hull, aircraft, machine, etc. Cf. outboard (def. 4).
1. an inboard motor.
2. a boat equipped with an inboard motor.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.