Prefect

n.	1.	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.
	2.	A superintendent of a department who has control of its police establishment, together with extensive powers of municipal regulation.
	3.	In the Greek and Roman Catholic churches, a title of certain dignitaries below the rank of bishop. Apostolic prefect (R. C. Ch.) the head of a mission, not of episcopal rank. - Shipley.

Noun

1.

prefect - a chief officer or chief magistrate; "the prefect of Paris police"

PREFECT, French law. A chief officer invested with the superintendence of the administration of the laws in each department. Merl. Repert. h.t.

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