'outboard' definitions:
Definition of 'outboard'
(from WordNet)
adjective
Located away from the midline of a vessel or aircraft; "the outboard section of a wing"; "outboard rigging" [ant: inboard]
noun
A motorboat with an outboard motor [syn: outboard motorboat, outboard]
noun
Internal-combustion engine that mounts at stern of small boat [syn: outboard motor, outboard]