medallion

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A large medal.
2. n. An emblem of registration for a taxicab.
3. n. Any of various large ancient Greek coins.
4. n. Something resembling a large medal, as:
5. n. An oval or circular design used as decoration.
6. n. A painting or an engraving set in an oval or circular frame.
7. n. A circular portion of food, especially a boneless cut of meat: medallions of veal.

Century Dictionary and Cyclopedia

1. n. A medal of large size. Some Greek coins of unusually large module are popularly, though incorrectly, so called: as, the Syracusan medallions. The pieces called by numismatists the Roman medallions are generally struck in copper, though sometimes in the precious metals, and bear a general resemblance to the sestertii or large bronze coins of the earlier Roman emperors; but they are often of finer workmanship than the coins, and are not inscribed with the letters S. C. (for senatus consulto). These medallions (the ancient name of which is not known) did not circulate as money, but were given by the emperors as presents to state officials and others. Their types are of a more or less commemorative character.
2. n. Anything resembling the classical medallion. A circular or oval disk decorated with figures, as a portrait with legends, and cast in metal. Medallions of this sort were common at the epoch of the Renaissance, and are among the most interesting specimens of the sculptures of that time.

Wiktionary

1. n. A large medal, usually decorative.
2. n. A cut of meat resembling a medallion.
3. n. architecture A round or oval frame (often made of Stucco) which contains a plastic or pictorial decoration of a facade, an interior, a piece of furniture or equipment.
4. n. A circular certificate used in some places to register a vehicle, especially a taxicab.

GNU Webster's 1913

1. n. A large medal or memorial coin.
2. n. A circular or oval (or, sometimes, square) tablet bearing a figure or figures represented in relief.

WordNet 3.0

1. n. a circular helping of food (especially a boneless cut of meat)
2. n. any of various large ancient Greek coins
3. n. an emblem indicating that a taxicab is registered
4. n. an award for winning a championship or commemorating some other event