Definition of trireme
: an ancient galley having three banks of oars
Recent Examples of trireme from the Web
The Greek city-states held off a Persian invasion at the Battle of Marathon in 490 B.C. Ten years later, in August, 480 B.C., under the command of Darius’ heir Xerxes, the Persians fought a fleet of Greek triremes at the battle of Artemision.
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