[3] Metope: The word means originally the space between two triglyphs (see definition of entablature); but is generally applied in English writing to the slab or block of stone which fills this space in the Doric temples known to us. It is evident that the outer surface of this block was sometimes painted, and it is known that it was sometimes carved in low relief, as at Selinuntum, of which temple sculptured slabs are preserved in the museum at Palermo; while those of the Theseion and the Parthenon were in very high relief.
[4] Pteroma: The side or flank, hence, in modern usage, the space covered by the roof of a portico, and therefore including the columns and intercolumniations, although in general usage it applies only to the passage between the columns and the wall behind.
[5] Naos: Called also cella: the enclosed part of a Greek temple, that which has solid walls and may be divided into two or three rooms: also sometimes the larger of these subdivisions as distinguished from the Opisthodomos, or Treasury.
[6] Octastyle: Having eight columns, when said of a portico; having eight columns in front, when said of a temple or similar building.
[7] Hexastyle: Having six columns; as in the case of octastyle for eight.
[8] Entablature: In a piece of classic architecture, the three horizontal members above the columns when these three are taken together as forming one part of the order. The entablature consists of architrave or epistyle, immediately above the columns, the frieze, and the cornice, each of which may have several decorative subdivisions. Thus in the Ionic Order the epistyle may be divided horizontally into three surfaces projecting slightly more and more from the bottom upward. The frieze in the Doric style (Roman or Greek) is divided by triglyphs into metopes; and in the other orders has often sculptured ornament. The varieties of form in the cornice are very considerable. A triglyph is one of those blocks cut with vertical channels, which seem to rest upon the epistyle and to support the cornice. The metopes are the spaces between; and also the non-structural slabs or blocks which fill those spaces. In a very few instances the entablature is irregular in some respect; thus the portico of Caryatides, [Pl. VI], may be said to have no frieze, but epistyle and cornice only. In Roman work the whole entablature is occasionally arched up, bent to a curve, as in a temple at Baalbec, and as in a palace at Spalato.
[9] Doric Order: In Greek and Roman architecture, and in those neo-classic styles founded upon antiquity, the Order is the unit of design and consists of one complete column (shaft and capital, with base, if any, and pedestal, if any) and so much of the entablature as may be sufficient to show its whole character. The Grecian Doric Order alluded to in the text, is peculiar in the shape and number of the channels of the shaft, in the echinos-shaped bell of the capital, in the square and unadorned abacus, in having no base, in having the frieze broken up into short lengths by the triglyphs, and in the minor details depending upon the above.
[10] Architrave:
[11] Frieze: for these terms see footnote Entablature above.
[12] Stylobate: The flat, continuous surface upon which the columns stand, as in a colonnade. When the whole flat surface forming the floor of the passageway (see Pteroma) is considered, the word stereobate is employed.