Definition: The term "archdeaconate" refers to an ecclesiastical function held by a bishop, usually for a period of years or decades, often in connection with the ordination of new bishops. It involves serving as their spiritual head within the church hierarchy and overseeing various functions under their command. Definition: Archdeaconates are appointments of a bishop where he/she serves as spiritual head, a position that is usually held over a number of years or even decades. They typically oversee matters related to ordination, administration of finances, ecclesiastical law, and other governance tasks within the church hierarchy.