[het-uh-roh-oo-see-uh n, -ou-see-uh n]Ecclesiastical
a person who believes the Father and the Son to be unlike in substance or essence; an Arian (opposed to Homoousian).
of or relating to the Heteroousians or their doctrine.
Origin of Heteroousian
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a Christian who maintains that God the Father and God the Son are different in substance
of or relating to this belief
Word Origin for Heteroousian
C17: from Late Greek heteroousios, from Greek hetero- + ousia nature
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012