Tār'sus, n.

n.; pl. TÄR'SĪ. [N. Lat., Gr. ταρσός, the flat of the foot. Cf. TARSE.] (Anat.) (a.) That part of the foot to which the leg is articulated, the front of which is called the instep. (b.) A small cartilaginous layer situated in the substance of the free edge of each eyelid, that of the upper eyelid being larger and broader than that of the lower;—called also tarsal cartilage. Dunglison.