%tunicle%

n. [ L. tunicula a little tunic, coat, or membrane, dim. of tunica a tunic: cf. OF. tunicle. ] 1. A slight natural covering; an integument. [ 1913 Webster ]

The tunicles that make the ball or apple of the eye. Holland. [ 1913 Webster ]

2. (R. C. Ch.) A short, close-fitting vestment worn by bishops under the dalmatic, and by subdeacons. [ 1913 Webster ]