From the Latin for "doorkeeper", it's sometimes used as the title of the chief administrator of a univ. or college
..... doorkeeper, who has charge of the senate chamber and its 
entrances, and a... [DOC] [TLE] Xavier University - Jesuit Resource - Jesuit A-Z - Jesuit Terms View All [PAR] At a time when the Sisters of Loreto (formal title: Institute of the Blessed Virgin .... 
From 1988 to 1991 he was rector of the Jesuit Community at Boston College and 
... the 266th leader of the Roman Catholic Church with its 1.2 billion members.