Theol. of or holding the teaching that God the Father and God the Son are of the same nature
Origin of homoousianEcclesiastical Late Latin homoousianus ; from Ecclesiastical Late Greek homoousios, consubstantial ; from homos, same + ousia, essence: see homoiousian
an adherent of this teaching
A Christian supporting the Council of Nicaea's Trinitarian doctrine that Jesus, as Son of God, is consubstantial with God the Father.
Origin of HomoousianLate Latin homo&umacron;si&amacron;nus, from homo&umacron;sius, of same substance, from Greek homoousios : homo-, homo- + ousi&amacron;, substance; see Homoiousian.
(comparative more homoousian, superlative most homoousian)
- (historical) One of those, in the 4th century, who accepted the Nicene Creed and maintained that the Son had the same essence or substance with the Father.
From Ancient Greek ὁμοούσιος (homoousios), from ὁμο (homo, “same”) + ουσία (ousia, “essence”).