inboard-outboard

[ in-bawrd-out-bawrd, in-bohrd-out-bohrd ]

adjective

1. Also (of a motorboat) having an inboard engine connected to a maneuverable outboard drive-shaft unit.

noun

1. an inboard-outboard motor.
2. a boat equipped with such a motor. : I/O

Word History and Origins

Origin of inboard-outboard¹

First recorded in 1925–30

Example Sentences

A 23-foot Chris-Craft in its Launch series with the smallest available 300-horsepower inboard-outboard engine lists for just over $100,000, the Chris-Craft website indicates.

From Washington Times

A 22-foot Bayliner VR6 Bowrider with a 250-horsepower inboard-outboard engine lists for around $46,400, according to that company’s website.

From Washington Times