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Meaning of inboard-outboard

in•board-out•board

Pronunciation: (in'bôrd"out'bôrd", in'bōrd"out'bōrd"), [key]
— adj.
  1. (of a motorboat) having an inboard engine connected to a maneuverable outboard drive-shaft unit.
—n.
  1. an inboard-outboard motor.
  2. a boat equipped with such a motor. Abbr.: I/O&hasp;&hasp; Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.