/truy"euh rahrk'/ , n. Gk. Hist.
1. the commander of a trireme.
2. (in Athens) a citizen who, singly, or jointly with other citizens, was required to fit out a trireme for the public service.
[ 1650-60; triérarchos , equiv. to triér ( es ) trireme + archós commander. See TRI-, -ARCH ]