aedicula
Small pedimental naiskos, either a free-standing construction or integrated into a larger building's facade.

barrel-vault
vaulted, semi-cylindrical construction used often as roof.

cavea
Τhe auditorium or audience sitting of a theater.

corinthian order
The most elaborate of the ancient greek architectural orders. It was developed in the 4th century BC in Greece and it was extensively used in Roman architecture. It is similar to the Ionic order. Its capitals being four-sided and composed of a basket-shaped body decorated with volumes and rows of acanthus leaves.

diazoma (lat. praecinctio)
The circular passage way between the lower and upper tiers of seats in an anient Greek theater.

greek type theatre
Theatre type developed in the Greek world during the Hellenistic period. It consists of three main parts which are not connected to each other: the cavea, the orchestra and the scene. The cavea is bigger than a semicircle, usually built on the slope of a hill and supported by retaining walls. The orchestra is circular or horse-shoe shaped and the scene is rectangular.

ionic order, the
An architectural order devised in Ionia and developed in Asia Minor and the Greek islands in the 6th century BC. Its columns have elaborately moulded bases, fluted shafts (with fillets, ending in fillets), and volute capitals. The entablature consists of an three-fasciae archirave, a continuous frieze, usually richly decorated with reliefs, and a cornice. The Ionic order was more elaborate in dimentions, comparing with the Doric.

kerkides (lat. cunei)
A wedge-shaped section of seats between two stepped passageways in an greek and roman theaters.

opus quadratum
Tecnhique of wall construction, in which chiselled squared blocks of stone of the same dimensions were placed in parallel lines.

orchestra
The performance space of the ancient Greek and Roman theatre, placed between the scene building and the cavea. It was usually semi-circular in shape and rarely circular.

parodos
It was one of two side passageways in an ancient Greek theatre, between the scene and the cavea, through which the chorus and the actors entered the orchestra.

pillar
Pier of square or rectangular cross-section.

podium
The base of a building

proscenium (or proscaenium), the
The colonnade added in front of the skene of the ancient Greek theatre. There the intercolumnar spaces were usually closed by doors or painted panels.

Roman-Asia Minor type of theatre, the
The edifice of the theatre as it was formed during the Roman period in Asia Minor. It was a merge of the Greek and the Roman type, with koilon larger than the semi-circle and monumental mutli-storeyed scene, which often adjoined to the curve of the tiers and clogged the whole construction.

scene (lat. scaena -ae)
The stage building of the ancient theaters originally used for storage but provided a convenient backing for performances.

tribunalium
A raised platform in a Roman Theatre where the magistrates sat; These seats of honor in theatre would normally be at the extreme sides of the cavea above the two side entrances to the orchestra.