Source : Webster's Revised Unabridged Dictionary (1913)

Tarsus \Tar"sus\, n.; pl. {Tarsi}. [NL., fr. Gr. ? the flat of
   the foot, the edge of the eyelid. Cf. 2d {Tarse}.]
   1. (Anat.)
      (a) The ankle; the bones or cartilages of the part of the
          foot between the metatarsus and the leg, consisting in
          man of seven short bones.
      (b) A plate of dense connective tissue or cartilage in the
          eyelid of man and many animals; -- called also {tarsal
          cartilage}, and {tarsal plate}.

   2. (Zo["o]l.) The foot of an insect or a crustacean. It
      usually consists of form two to five joints.