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]

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]

The Collaborative International Dictionary of English v.0.48:

Talus \Ta"lus\, n. [F.]
   1. (Fort.) A slope; the inclination of the face of a work.
      [1913 Webster]

   2. (Geol.) A sloping heap of fragments of rock lying at the
      foot of a precipice.
      [1913 Webster]

WordNet (r) 3.0 (2006):

talus
    n 1: a sloping mass of loose rocks at the base of a cliff [syn:
         talus, scree]
    2: the bone in the ankle that articulates with the leg bones to
       form the ankle joint [syn: anklebone, astragal,
       astragalus, talus]