Pendentive
Pronunciation : Pen*den"tive
Part of Speech : n.
Etymology : [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 sp
Source : Webster's Unabridged Dictionary, 1913