inboard

• POS: Adjective, Adverb
• HYPHEN: in=board

CIDE DICTIONARY

inboard, a. & adv. 

•  Inside the line of a vessel's bulwarks or hull; the opposite of outboard; as, an inboard engine; an inboard cargo; haul the boom inboard.  [1913 Webster]
•  From without inward; toward the inside; as, the inboard stroke of a steam engine piston, the inward or return stroke.  [1913 Webster]

OXFORD DICTIONARY

inboard, adv. & adj.
--adv. within the sides of or towards the centre of a ship, aircraft, or vehicle.
--adj. situated inboard.