D defs.my
Entry 1 sense Webster, 1913

Heterodoxy

/hĕt'-ẽr-əd-äkˌ-sē/ · Het·er·o·dox·y · IPA /ˈhɛtɛɹədɒksi/
01 n. An opinion or doctrine, or a system of doctrines, contrary to some established standard of faith, as the Scriptures, the creed or standards…
  1. 1.
    An opinion or doctrine, or a system of doctrines, contrary to some established standard of faith, as the Scriptures, the creed or standards of a church, etc.; heresy.