quatrefoil

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quatrefoil

1. a leaf composed of four leaflets
2. Architect a carved ornament having four foils arranged about a common centre, esp one used in tracery

quatrefoil

Having four foils, lobes, or acute divisions.
See also: Foils

quatrefoil

[′kwä·trə‚fȯil]
(mathematics)
A multifoil consisting of four congruent arcs of a circle arranged around a square.

quatrefoil

A four-lobed pattern divided by cusps; also See foil.
References in periodicals archive ?
To the reverse, an asymmetrical composition of solidly beaded trefoil, openwork quatrefoil and cinquefoil, with delicate star-like flowers on linear stems, within multiple zigzag and linear borders.
Each features a large quatrefoil center with a meandering floral design border and filled corners.
This is a lovely silver oval sweetmeat basket, circa 1763, with pierced stars and quatrefoils, embossed beads, shaped gadrooned border and pierced handle.
The rosettes or metal quatrefoils look like stylized four-leaf clovers.
The wide border around the field is composed of alternating cartouches and quatrefoils against dark pink-red arabesque work.
An elaborate Venetian Gothic loggia of ogee arches and quatrefoils in circles served as an entry porch at street level.
The Cardinal's Palace has patterned windows in the entrance hall and stairwell and first floor hall, a rose window with the Cardinal's coat-of-arms at the top of the stairwell (IMAGE 5), figurative single-light windows with tracery and a tall patterned window with quatrefoils containing portrait heads in the oratory, six rectangular patterned windows with small saints' heads and one with the Cardinal's arms in the downstairs common room, and two round windows the dining room.
Nine stained-glasswindows, in the Elizabethan style, looked out from elaborate buttresses, intricately carved quatrefoils and niches, giving the dwelling the appearance of some ecclesiastical building.
The windows are mostly tall and pointed, but some are rectangular and one has a row of quatrefoils.
The wonder is in the details, the fine range of tones from black to pure white as light bathes the awning, and the gradation from darkness to light in the row of little openwork quatrefoils in the frieze.
Pouring through stained glass windows, glazed quatrefoils, and rosettes, light floods through vertically opposed open doors, rebounds from holy figures high in their niches, softly emanates from a choir loft, and radiates intensely from still candies.