Quadrireme n. : A galley with four banks of oars or rowers.

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Taxonomy
warships, oars, fleet, rowers, Morrison, vessels, oarsmen, quinquereme, Romans, navy, galleys, hull, Carthaginian, quadrireme, quinqueremes, Coates, Greek, levels.

Defination from the web:
quadrireme (Gk. ... Subsequently, the quadrireme was favored as the main warship of the Rhodian navy, the sole professional naval force in the Eastern Mediterranean. ...