(n) (Christianity) holding views that disagree with accepted doctrine; especially disagreement with papal infallibility, Example:he denies the errancy of the Catholic Church
{ } n. the state or condition of being aberrant; a wandering from the right way; deviation from truth, rectitude, etc. Syn. -- aberrance, aberration, deviance [ 1913 Webster WordNet 1.5 ]
Aberrancy of curvature (Geom.), the deviation of a curve from a circular form. [ 1913 Webster ]