pendentive · noun — the concave triangular sections of vaulting that provide the transition between a dome and the square base on which it is set and transfer the weight of the dome.
Definition from Wiktionary (CC BY-SA 3.0).
Why “pendentive” is a great word
A concave, triangular section of vaulting that transitions a dome to a square supporting base and transfers the dome's weight. Borrowed from French 'pendentif' (something hanging), from Latin 'pendēre' (to hang). First attested in English in the early 18th century (1720–30). Unlike a 'squinch,' which corbels angularly across a corner, or a 'spandrel,' which fills the incidental decorative void between arches, the pendentive is a smooth, curved feat of structural resolution. It is the silent hinge between geometry and gravity: the smooth, bowl-like curve beneath a Byzantine dome, the shadowed cusp where stone seems to dissolve into air, and the hidden strength that allows a circle to crown a square—proof that what holds up the sky is often the shape of an absence.
❧ Essay by Lexicurio’s AI · definition, etymology & citations from published sources
Etymology
Borrowed from French pendentif.
noun
- The concave triangular sections of vaulting that provide the transition between a dome and the square base on which it is set and transfer the weight of the dome.
Definitions & examples from Wiktionary (CC BY-SA 3.0).
Words closest in meaning
By meaning, not spelling — each word's AI semantic fingerprint, nearest first.
- pendice 61% match — A sloping roof; a lean-to; a penthouse. vs pendentive →
- spandrel 57% match — The space (often more or less triangular) between the outer curve of an arch (the extrados) and a straight-sided figure that bounds it; the space between two contiguous arches and a straight feature above them. vs pendentive →
- squinch 56% match — A structure constructed between two adjacent walls to aid in the transition from a polygonal to a circular structure, as when a dome is constructed on top of a square room. vs pendentive →
- piend 56% match — The angle or edge formed where two surfaces meet. More specifically, the sloped edges of a pavilion or hip roof. vs pendentive →
- pendency 56% match — The state of being pendent; suspension. vs pendentive →
- pendicle 56% match — An appendage; something attached to something else. vs pendentive →
- perpendicle 55% match — Something that hangs down, especially straight down, such as a plumb line. vs pendentive →
- pendently 55% match — In a pendent manner. vs pendentive →