The Collaborative International Dictionary of English v.0.48:

Epipodial \Ep`i*po"di*al\, a.
   1. (Anat.) Pertaining to the epipodialia or the parts of the
      limbs to which they belong.
      [1913 Webster]

   2. (Zo["o]l.) Pertaining to the epipodium of Mollusca.
      [1913 Webster]