Triumvir
in Roman government, one of the three men united in office.
The triumvirs were either ordinary magistrates (as the triumviri capitales, who were police commissioners, having charge of the jails, and acting as magistrates, the triumviri monetales, who were commissioners of the mint, and had the charge of coining money), or they were extraordinary commissioners appointed to jointly execute any office. The term is specifically applied to the members of the two triumvirates.