Pronunciation: (ku-thol'i-kus, -kos"),[key] —n., —pl.-cos•es, -coiPronunciation: (-koi").[key] 1. (often cap.)Eastern Ch. a. any of the heads of certain autocephalous churches.
b. (in some autocephalous churches) a primate subject to a patriarch and having authority over metropolitans.
2. (in the early Christian church) the head of monasteries in the same city. Also,catholicus,katholikos.