Polifora

[1][2] It appears in towers and belfries on top floors, where it is necessary to lighten the structure with wider openings.

The term polifora usually refers to the window with at least five parts.

The polifora is a multiple-part window, divided by small columns or pilasters.

The polifora is typical for Gothic architecture and widely used to decorate large cathedrals in the Northern Europe—particularly in Belgium and the Netherlands where the polifora became a true feature of distinction and personalization of the French Gothic style.

Rarer are the windows with higher number of openings; for example the eight-part polifora of the Ca 'Foscari in Venice.