n. A part of mail armor intended originally for the protection of the neck and shoulders, but as generally used a long coat of mail coming below the knees and even nearly to the ankles, slit up the sides, and sometimes in front and behind, to allow the wearer to mount a horse.n. In the fourteenth century and later, a piece of defensive armor, probably an outer garment of splint armor. See splint, jesserant, and crevisse.n. Among actors, a short tunic forming a part of medieval dress.