Dictionary
tri•er•ar•chy
Pronunciation: (trī'u-rär"kē), [key]—
n.,
—pl. -chies.
Gk. Hist.
1. the office of a trierarch.
2. trierarchs collectively.
3. (in Athens) the duty of fitting out or furnishing triremes for the public service.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.