PROTESIS. — As a “diaconic,” the term is used to denote, in Byzantine architecture or that derived from it, one of the two minor apses that flank the central one, which is always polygonal (v. PASTOPHORION).
Enciclopedia Cattolica
PROTESIS. — As a “diaconic,” the term is used to denote, in Byzantine architecture or that derived from it, one of the two minor apses that flank the central one, which is always polygonal (v. PASTOPHORION).