A Christian who believes that the substance and nature of God the Father and God the Son are different; an Arian.
Origin of HeteroousianFrom Greek heteroousios, differing in substance : hetero-, hetero- + ousia, substance, nature; see Homoiousian.
- Het′er·o·ou′si·an, Het′er·ou′si·an
(comparative more heteroousian, superlative most heteroousian)
From Greek á¼‘Ï„ÎµÏÎ¿Î¿Ï…ÏƒÎ¹Î¿Ï‚, from hetero- "˜different' + Î¿Ï…ÏƒÎ¹Î± "˜essence'.