The relation of the tetrastyle to the Tuscan atrium is indicated in our transverse section (Fig. 143).
Abram afterwards built and endowed an oratory near the tetrastyle, and Sergius ordained him priest and his two sons deacons.
tetrastyle, tet′ra-stīl, n. a temple or other building having four front columns in its portico: a group of four pillars.
In the background is a tetrastyle temple, doubtless the temple before us; the scene represents the dedicatory exercises.
The centre is a tetrastyle portico of the Ionic order, raised on a terrace.