- A Roman officer who controlled or superintended a
particular command, charge, department, etc.; as, the prefect of the
aqueducts; the prefect of a camp, of a fleet, of the city guard, of
provisions; the pretorian prefect, who was commander of the troops
guarding the emperor's person.
- A superintendent of a department who has control of its
police establishment, together with extensive powers of municipal
- In the Greek and Roman Catholic churches, a title of
certain dignitaries below the rank of bishop.