Decemvir n. : One of a body of ten magistrates in ancient Rome.

Decemvir n. : A member of any body of ten men in authority.

Example:
where were the Decemviri located in Rome?

Taxonomy
Decemviri Legibus Scribundis, decemvirate, decemvir, Imperio, consul, dictator, college, patricians, free encyclopedia, Constitution, lictors, Republic, Extraordinary Magistrates, Appius Claudius, commission, laws, Agris, Dandis.

Defination from the web:
decemvir) is a Latin term meaning "Ten Men" which designates any such commission in the Roman Republic (cf. Triumviri, Three Men) ... Each decemvir administered the government for one day in turn, and whichever decemvir presided on any given day was preceded by the twelve ...