A Fillet

(now rare) A headband; a ribbon or other band used to tie the hair up, or keep a headdress in place, or for decoration.
A fine strip of any material, in various technical uses.
(construction) A heavy bead of waterproofing compound or sealant material generally installed at the point where vertical and horizontal surfaces meet.
(engineering, drafting, CAD) A rounded relief or cut at an edge, especially an inside edge, added for a finished appearance and to break sharp edges.
A strip or compact piece of meat or fish from which any bones and skin and feathers have been removed.
(Britain) A premium cut of meat, especially beef, taken from below the lower back of the animal, considered to be lean and tender; also called tenderloin.
(architecture) A fine flat moulding/molding used as separation between coarser mouldings.
(architecture) The space between two flutings in a shaft.
(heraldry) An ordinary equal in breadth to one quarter of the chief, to the lowest portion of which it corresponds in position.
The thread of a screw.
A colored or gilded border.
The raised moulding around the muzzle of a gun.
(woodworking) Any scantling smaller than a batten.
(anatomy) A fascia; a band of fibres; applied especially to certain bands of white matter in the brain.
The loins of a horse, beginning at the place where the hinder part of the saddle rests.