Definitions for "Pendentive"
The portion of a vault by means of which the square space in the middle of a building is brought to an octagon or circle to receive a cupola.
The part of a groined vault which is supported by, and springs from, one pier or corbel.
a concave spandrel leading from the angle of two walls to the base of a circular dome; the structural means of support for a circular dome to rest on a square dome, a common Byzantine architecture
A piece of masonry construction for filling in the space in the re-entrant angle of two walls.