Search Result for "oligarch": 
Wordnet 3.0

NOUN (1)

1. one of the rulers in an oligarchy;

The Collaborative International Dictionary of English v.0.48:

Oligarch \Ol`i*garch\, n. A member of an oligarchy; one of the rulers in an oligarchical government. [1913 Webster]
WordNet (r) 3.0 (2006):

oligarch n 1: one of the rulers in an oligarchy
Bouvier's Law Dictionary, Revised 6th Ed (1856):

OLIGARCHY. This name is given to designate the power which a few citizens of a state have usurped, which ought by the constitution to reside in the people. Among the Romans the government degenerated several times into an oligarchy; for example, under the decemvirs, when they became the only magistrates in the commonwealth.