inboard Meaning, Definition & Usage

  1. adjective located within the hull or nearest the midline of a vessel or aircraft
    • the inboard flaps on the wing

WordNet

In"board` adjective & adverb
Definitions
  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.

Webster 1913