Dictionary
au•to•crat
Pronunciation: (ô'tu-krat"), [key]—
n.
1. an absolute ruler, esp. a monarch who holds and exercises the powers of government as by inherent right, not subject to restrictions.
2. a person invested with or claiming to exercise absolute authority.
3. a person who behaves in an authoritarian manner; a domineering person.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.