The Collaborative International Dictionary of English v.0.48:

Parorchis \Pa*ror"chis\, n. [NL. See Para-, and Orchis.]
   (Anat.)
   The part of the epididymis, or the corresponding part of the
   excretory duct of the testicle, which is derived from the
   Wolffian body.
   [1913 Webster]