1. government by three rulers
Usage: political science
2. a country or state ruled by three people
Usage: political science

Examples

• The ancient Roman triarchy divided power among three consuls.
• After the revolution, they established a triarchy to prevent any single person from gaining too much control.
• The triarchy proved unstable as the three leaders constantly disagreed.
• Historical examples of triarchy are rare compared to monarchies.
• The constitution outlined how the triarchy would make decisions.
• Each member of the triarchy controlled a different aspect of government.