vicar(redirected from Lay vicar)
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(1) In the Late Roman Empire the ruler of an administrative district, or diocese.
(2) In the Orthodox Church an assistant to the eparchial bishop in administering an eparchy.
(3) In the Roman Catholic Church there are general vicars, or assistants to bishops in administering church dioceses, and parish vicars, or assistants to parish priests (cures), who substitute for them when they are ill or absent. There are also apostolic vicars, or papal assistants, most of whom are in remote (missionary) regions. (In 1969 there were 83 apostolic vicars.)