1. (n.) A piece of armor, whether of chain mail or of plate, defending the throat and upper part of the breast, and forming a part of the double breastplate of the 14th century.

2. (n.) A piece of plate armor covering the same parts and worn over the buff coat in the 17th century, and without other steel armor.

3. (n.) A small ornamental plate, usually crescent-shaped, and of gilded copper, formerly hung around the neck of officers in full uniform in some modern armies.

4. (n.) A ruff worn by women.

5. (n.) A cutting instrument used in lithotomy.

6. (n.) A grooved instrument used in performing various operations; -- called also blunt gorget.

7. (n.) A crescent-shaped, colored patch on the neck of a bird or mammal.