Talipes calcaneus

from WordNet (r) 3.0 (2006)

talipes calcaneus
    n 1: talipes in which the toes are pointed upward and the person
         walks on the heel of the foot

from The Collaborative International Dictionary of English v.0.48

Talus \Ta"lus\, n.; pl. {Tali}. [L., the ankle, the ankle bone.]
   1. (Anat.) The astragalus.
      [1913 Webster]

   2. (Surg.) A variety of clubfoot ({Talipes calcaneus}). See
      the Note under {Talipes}.
      [1913 Webster]