Dean (education)

In academic administration, a dean is a person with significant authority over a specific academic unit, or over a specific area of concern, or both.The term comes from the Latin decanus, a leader of "ten," taken from the Medieval monasteries (particularly those following the Cluny reform) which were often extremely large with hundreds of monks (the size of a small college campus). The monks were organized into groups of ten for administrative purposes, along the lines of military platoons, headed by a senior monk, the decanus.
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