Filet, in Architecture, denotes a little square member or ornament used in divers places, and on divers occasions, but generally as a sort of corona over a greater moulding.

The fillet is the same with what the French call reglet, bande, and bandelette; the Italians lifta or lifetta.

Heraldry, a kind of orle or bordure, containing only a third or fourth part of the breadth of the common bordure. It is supposed to be withdrawn inwards, and is of a different colour from the field. It runs quite round, near the edge, as a lace over a cloak.

Fillet is also used for an ordinary drawn like the bar from the sinister point of the chief across the shield, in manner of a scarf; though it is sometimes also seen in the situation of a bend, fesse, croix, &c.

According to Guillim, the fillet is a fourth part of the chief, and is placed in the chief point of the escutcheon.

Fillet is also used among painters, gilders, &c., for a little rule or reglet of leaf gold, drawn over certain mouldings; or on the edges of frames, panels, &c., especially when painted white, by way of enrichment.

Fillets, in the Manege, are the loins of a horse, which begin at the place where the hinder part of the saddle rests.