Category:Pendentive

Pen*den"tive, n. Etym: [f. pendentif, fr. L. pendere to hang.] (arch.) (a) 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. (b) the part of a groined vault which is supported by, and springs From, one pier or corbel.