||Ca*thol"i*cos (?), n. [NL. See Catholic.] (Eccl.) The spiritual head of the Armenian church, who resides at Etchmiadzin, Russia, and has ecclesiastical jurisdiction over, and consecrates the holy oil for, the Armenians of Russia, Turkey, and Persia, including the Patriarchs of Constantinople, Jerusalem, and Sis.

&fist; The Patriarch of Constantinople is the civil head of the Armenians in Turkey.