Florentine arch

Florentine arch is an arch where the distance between the intrados and extrados is greater at the apex than at the springing levels. In masonry arches, this leads to voussoirs being taller at the top.
Sometimes the extrados of a Florentine arch has a shape like the one in the pointed arch, while the intrados is semicircular, which is characteristic for the mediaeval architecture of Florence. A variant where both extrados and intrados are pointed is sometimes called the Venetian arch, not to be confused with another Venetian arch, where a double window is crowned by two smaller semicircular arches under a twice-larger containing arch. John Ruskin treated the development of the Gothic ogee arch as an evolution of the different shapes of the Florentine arch.