tri·um·vi·rate [tray-uhm-ver-it, -vuh-reyt]
1. Roman History. the office or magistracy of a triumvir.
2. a government of three officers or magistrates functioning jointly.
3. a coalition of three magistrates or rulers for joint administration.
4. any association of three in office or authority.
5. any group or set of three.
[Origin: 1575–85; L triumvirātus.]
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