/truy um"veuhr it, -veuh rayt'/ , n.
1. Rom. Hist. 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.
[ 1575-85; triumviratus. See TRIUMVIR, -ATE 3 ]