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 (hĕt′ə-rō-o͞o′sē-ən, -ou′sē-ən) also Het·er·ou·si·an (hĕt′ə-ro͞o′-, -rou′-)
A Christian who believes that the substance and nature of God the Father and God the Son are different; an Arian.

[From Greek heteroousios, differing in substance : hetero-, hetero- + ousiā, substance, nature; see Homoiousian.]

Het′er·o·ou′si·an, Het′er·ou′si·an adj.


(ˌhɛtərəʊˈuːsɪən; -ˈaʊsɪən)
(Ecclesiastical Terms) a Christian who maintains that God the Father and God the Son are different in substance
(Ecclesiastical Terms) of or relating to this belief
[C17: from Late Greek heteroousios, from Greek hetero- + ousia nature]
References in periodicals archive ?
however, upends the ancient characterization of Eunomius by his opponents as a "logic chopper": the Heteroousian theological project was a natural, though problematic, development of mid-fourth-century Christian thought.
Athanasius's opposition of an earlier form of the Heteroousian project frames the theology of Eunomius.
To put it simply, Heteroousian theology is problematic insofar as it hardens the relationship between names and referents in theological discourse.