fillet

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A narrow strip of ribbon or similar material, often worn as a headband.
• noun A strip or compact piece of boneless meat or fish, especially the beef tenderloin.
• noun A boneless strip of meat rolled and tied, as for roasting.
• noun A thin flat molding used as separation between or ornamentation for larger moldings.
• noun A ridge between the indentations of a fluted column.
• noun A narrow decorative line impressed onto the cover of a book.
• noun Heraldry A narrow horizontal band placed in the lower fourth area of the chief.
• noun Anatomy A loop-shaped band of fibers, such as the lemniscus.
• transitive verb To bind or decorate with or as if with a fillet.
• transitive verb To slice, bone, or make into fillets.

from The Century Dictionary.

• To bind, furnish, or adorn with a fillet or little band.
• In cooking: To form into or dress as a fillet, as a piece of beef.
• To cut fillets from, as from a chicken or a fish.
• noun The rounded corner of a groove in a roll, or of a pattern for molding, etc.
• noun A loop-shaped instrument or bandage by means of which, when passed over a projecting part of the fetus, traction is made in cases of tedious or obstructed labor.
• noun A little band to tie about the hair of the head.
• noun A bill or paper kept on a file; a bill of fare.
• noun In architecture: A small molding having the appearance of a narrow flat band; an annulet; a list; a listel. It often projects, and is then rectangular in section. It is generally used to separate ornaments and moldings.
• noun The ridge between the flutes of a column; a facet.
• noun In heraldry: A bearing consisting of a barrulet occupying a position corresponding to the lower edge of the chief.
• noun A bearing consisting of a quarter of the bordure.
• noun Same as baston: in this sense usually called fillet of bastardy. Also combel.
• noun In technology: In carpentry: A strip nailed to a wall or partition to support a shelf, or a strip for a door to close against. A strip set into an angle between two boards.
• noun In gilding, a band of gold-leaf on a picture-frame or elsewhere.
• noun In coining, a strip of metal rolled to a certain size.
• noun The thread of a screw.
• noun A ring on the muzzle of a gun, etc.
• noun In a dairy, a perforated curb by which cheese-curds are confined.
• noun In bookbinding, a wheel-shaped tool on the edge of which is engraved a line or decoration, which is impressed on the backs or covers of books.
• noun In telegraphy, a paper ribbon upon which telegrams are recorded.
• noun In printing, a rule with broad or broad and narrow lines, principally used as a border.
• noun In weaving, a strip of card-clothing.
• noun A muscle, or a piece of meat composed of muscle; especially, the fleshy part of the thigh. The fillet of beef is the tenderloin; the fillet of veal, a thick piece cut from the leg; the fillet of chicken, the breast.
• noun In the manège, the loins of a horse, beginning at the place where the hinder part of the saddle rests.
• noun In cooking: A piece of beef, veal, or chicken, etc., boned and rolled, generally larded, tied round to keep it in shape, roasted or baked, and served with various sauces.
• noun A thick slice of fish.
• noun In anatomy, some special bundle of nerve-fibers; specifically, a band of longitudinal fibers lying in the ventral and outer parts of the tegmental region of the brain.
• noun In entomology: A narrow transverse colored band or mark, or an encircling band.
• noun The space between the eyes and the base of the mandibles or cheliceræ, as of a spider.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To bind, furnish, or adorn with a fillet.
• noun A little band, especially one intended to encircle the hair of the head.
• noun (Cooking) A piece of lean meat without bone; sometimes, a long strip rolled together and tied.
• noun A thin strip or ribbon; esp.: (a) A strip of metal from which coins are punched. (b) A strip of card clothing. (c) A thin projecting band or strip.
• noun (Mach.) A concave filling in of a reëntrant angle where two surfaces meet, forming a rounded corner.
• noun (Arch.) A narrow flat member; especially, a flat molding separating other moldings; a reglet; also, the space between two flutings in a shaft. See Illust. of Base, and Column.
• noun (Her.) An ordinary equaling in breadth one fourth of the chief, to the lowest portion of which it corresponds in position.
• noun (Mech.) The thread of a screw.
• noun A border of broad or narrow lines of color or gilt.