[in-bawrd, -bohrd] 
| 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. |
| 4. | inside or toward the longitudinal axis or center of a hull, aircraft, machine, etc. Compare outboard (def. 4). |
| 5. | an inboard motor. |
| 6. | a boat equipped with an inboard motor. |
| in·board (ĭn'bôrd', -bōrd') adj.
A motor attached to the inside of the hull of a boat. in'board' adv. |