Pronunciation: (te'trärk, tē'-), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/tetrarch.html on line 79 [key]
1. any ruler of a fourth part, division, etc.
2. a subordinate ruler.
3. one of four joint rulers or chiefs.
4. the ruler of the fourth part of a country or province in the ancient Roman Empire.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.