Homoousian

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Ho·mo·ou·si·an

H0258800 (hō′mō-o͞o′sē-ən, -zē-)n. A Christian supporting the Council of Nicaea's Trinitarian doctrine that Jesus, as Son of God, is consubstantial with God the Father.
[Late Latin homoūsiānus, from homoūsius, of same substance, from Greek homoousios : homo-, homo- + ousiā, substance; see Homoiousian.]

Homoousian

(ˌhəʊməʊˈuːsɪən; -ˈaʊ-; ˌhɒm-) n (Theology) a Christian who believes that the Son is of the same substance as the Father. Compare Homoiousianadj (Theology) of or relating to the Homoousians[C16: from Late Greek homoousios of the same substance, from Greek homo- + ousia nature] ˌHomoˈousianism n

Ho•mo•ou•si•an

(ˌhoʊ moʊˈu si ən, -ˈaʊ-, ˌhɒm oʊ-)

n. 1. a member of a 4th-century A.D. church party that maintained that the essence or substance of the Father and the Son is the same. adj. 2. of or pertaining to the Homoousians or their doctrine. [1555–65; < Late Greek homooúsi(os) of the same substance] Ho`mo•ou′si•an•ism, n.