The Collaborative International Dictionary of English v.0.48:

Tarsal \Tar"sal\, n. (Zool.)
   Same as Tercel. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tarsal \Tar"sal\, a. (Anat.)
   Of or pertaining to the tarsus (either of the foot or eye).
   -- n. A tarsal bone or cartilage; a tarsale.
   [1913 Webster]

   Tarsal tetter (Med.), an eruptive disease of the edges of
      the eyelids; a kind of bleareye.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tarsal
    adj 1: of or relating to or near the tarsus of the foot; "tarsal
           bones"
    n 1: any bone of the tarsus [syn: tarsal, tarsal bone]