trierarch Meaning, Definition & Usage

Tri"er*arch noun
Etymology
L. trierarchus, Gr. a trireme + a leader, a chief.
Definitions
  1. (Gr. Antiq.) (a) The commander of a trireme. (b) At Athens, one who (singly, or jointly with other citizens) had to fit out a trireme for the public service.

Webster 1913