An ancient ship with two banks of oars is called a "bireme".
An ancient vessel with two banks of oars was called a bireme.
An ancient galley with two banks of oars is called a bireme.
slave ship
A vessel with two tiers of oars was/is a bireme.
Bireme
Bireme
Trireme. The joys of The Sun crossword.
A bireme is an ancient galley with two banks of oars, one above the other.
Triremes
Triremes - warships with three banks of oars, sail and ram.
They were called biremes. These ships were frequently used by the Romans, The bireme eventually evolved into the trireme.
trireme