cloisonné masonry
Masonry in which bricks are arranged vertically and horizontally, in single or double courses, around small stones or stone blocks, creating a colourful decorative effect.

dome
A characteristic element of Byzantine architecture. The dome is a hemispherical vault on a circular wall (drum) usually pierced by windows. The domed church emerges in the Early Byzantine years and its various types gradually prevail, while they are expanded in the Balkans and in Russia.

drum of dome
Part of the church, semicircular or polygonal, on which rises an hemispheric dome

katholikon
The main church in a monastic complex, heart of the monastic activity.

templon or iconostasis
A structure separating the sanctuary from the main church. At first, it simply divided the nave from the presbytery, but later it became higher, with small columns and an epistyle. From the 11th century onwards, icons were placed between the templon columns and, somewhat later, icons were also placed above the epistyle, thus forming the iconostasis. The templon were originally from marble. Wooden iconostases appeared from the 13th century.