The Collaborative International Dictionary of English v.0.48:

Stercoranist \Ster"co*ra*nist\, n. [LL. stercoranista, fr. L.
   stercus, -oris, dung.] (Eccl. Hist.)
   A nickname formerly given to those who held, or were alleged
   to hold, that the consecrated elements in the eucharist
   undergo the process of digestion in the body of the
   recipient.
   [1913 Webster]