Definition of: tunic

(t′nik, ty′-) noun
1. Among the ancient Greeks and Romans, a body garment, with or without sleeves, reaching to the knees: worn usually without a girdle.
2. A modern outer garment gathered at the waist, as a short overskirt or a blouse.
3. A surcoat worn over armor.
4. A tunica.
5. Bot. Any loose membranous skin enveloping an organ, as a seed coat.
6. Brit. The undercoat worn by soldiers, policemen, etc.
7. A bishop's tunicle; a dalmatic. [<F tunique <L tunica <Semitic]