T. equinus

from The Collaborative International Dictionary of English v.0.48
Talipes \Tal"i*pes\, n. [NL., fr. L. talus an ankle + pes,
   pedis, a foot; cf. L. talipedare to be weak in the feet,
   properly, to walk on the ankles.] (Surg.)
   The deformity called {clubfoot}. See {Clubfoot}.
   [1913 Webster]

   Note: Several varieties are distinguished; as, {Talipes
         varus}, in which the foot is drawn up and bent inward;
         {T. valgus}, in which the foot is bent outward; {T.
         equinus}, in which the sole faces backward and the
         patient walks upon the balls of the toes; and {T.
         calcaneus} (called also {talus}), in which the sole
         faces forward and the patient walks upon the heel.
         [1913 Webster]
    

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