an under-garment worn by the ancient romans of both sexes. it was made with or without sleeves, reached to or below the knees, and was confined at the waist by a girdle.-any similar garment worm by ancient or oriental peoples; also, a common name for various styles of loose-fitting under-garments and over-garments worn in modern times by europeans and others.-same as tunicle.-a membrane, or layer of tissue, especially when enveloping an organ or part, as the eye.-a natural covering; an integument; as, the tunic of a seed.-see mantle, n., 3 (a).