Also found in: Wikipedia.
Related to Homoiousian: Homoousios


 (hō′moi-o͞o′sē-ən, -zē-)
An adherent of the Christian doctrine, formulated in the fourth century ad, that Jesus the Son and God the Father are of similar but not of the same substance.

[From Greek homoiousios, of similar substance : homoio-, homeo- + ousiā, substance (from ousa, feminine present participle of einai, to be; see es- in Indo-European roots).]


(ˌhəʊmɔɪˈuːsɪən; -ˈaʊ-; ˌhɒm-)
(Theology) a Christian who believes that the Son is of like (and not identical) substance with the Father. Compare Homoousian
(Theology) of or relating to the Homoiousians
[C18: from Late Greek homoiousios of like substance, from Greek homoio- like + ousia nature]
ˌHomoiˈousianism n


(ˌhoʊ mɔɪˈu si ən, -ˈaʊ-)

1. a member of a 4th-century A.D. church party that maintained that the essence of the Son is similar to, but not the same as, that of the Father.
2. of or pertaining to the Homoiousians or their doctrine.
[1725–35; < Late Greek homoioúsi(os) of like substance (homoi- homoi(o)- + -ousios, adj. derivative of ousía substance, essence, derivative of ṓn, s. ont-, present participle of eînai to be) + -an1]
Ho`moi•ou′si•an•ism, n.
References in periodicals archive ?
Likewise homoiousian theologians George of Laodicea and Basil of Ancyra provide Basil of Caesarea with a precedent for intellectual creativity in the face of the Heteroousian project.
Concerning the reasons underlying the Homoian Christian success vis-a-vis the Homoiousian church party at and particularly after the Council of Ariminum, see Winrich Lohr, "A Sense of Tradition: The Homoiousian Church Party," in Arianism after Arius, ed.
As I show below, Hilary begins to distance himself from the Homoiousian perspective as he begins to realize its vulnerabilities to Homoian attack.
As we will see, it is not uncommon to find Homoian and Homoiousian bishops signing the same creed.
15) The primary outcome of the Homoian victory in 360 was, however, primarily political, with Homoian bishops being placed in prominent sees, while their Homoiousian opponents were deposed.
20) It is tempting to see this as the final coalescing of the "Homoian" and "Homoiousian" theological parties, with the Sirmium 357 serving as the Homoian manifesto and Basil's letter of 358 as the Homoiousian riposte, and, in fact, these would be the two groups that were central to this three-year struggle.
Although we have no formal record that he signed, the Homoiousian delegates did, under much duress, assent to the revision, despite the fact, as we have seen with Germinius, that the Homoians believed the revision rendered Homoiousian theology no longer orthodox.
The first, using a biographical outline, traces Basil's evolution from a homoiousian to a Nicene position.
in the negative and argues that Newton was a Eusebian or Homoiousian (75).
Another homoiousian creed came out of Milan just before Ambrose was elected.
The very label "Arian" has proved to be increasingly unhelpful, as distinctions among the different forms of resistance to the Council of Nicaea and its creed (Homoian, Homoiousian, Eunomian, etc.
This allowed Edward Gibbon (himself briefly a Roman Catholic) to let rip: "The profane of every age have derided the furious contests which the difference of a single diphthong exacted between the Homoousians and the Homoiousians.