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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
D., 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.