Great conteſts have ariſen in the church of Rome, vvhether the ſacramental bread and vvine vvere ſo far digeſted, as that ſome part of them, like other food, vvas turned into excrements: thoſe vvho held the affirmative, vvent by the name of Stercorarians or Stercoraniſtæ. Cardinal Humbert, in his anſvver to Nicetas Pectoratus, treats him as a Stercoraniſt, merely for holding that the euchariſt breaks the faſt; vvhich opinion he imagined led directly into Stercoraniſm.
Source: wiktionary