triarchy noun. ['trʌɪɑ:ki] E17.
[from TRI- + -ARCHY, or Greek triarkhia triumvirate.]
1. A group of three districts or divisions of a country, each under its own ruler; rare a ruler of such a district or division. E17.

2. Government by three joint rulers; a triumvirate. M17.

[TahlilGaran] English Dictionary ▲