Definitions for: Inboard

[adj] located within the hull or nearest the midline of a vessel or aircraft; "the inboard flaps on the wing"

Webster (1913) Definition: In"board`, a. & adv.
1. (Naut.) Inside the line of a vessel's bulwarks or hull;
the opposite of outboard; as, an inboard cargo; haul the
boom inboard.

2. (Mech.) From without inward; toward the inside; as, the
inboard stroke of a steam engine piston, the inward or
return stroke.

Antonyms: outboard