Noun: homoiousian how,moy'oo-zee-un or hó,moy'oo-zee-un
- (historical, Christianity) an adherent of the belief that Jesus Christ was of similar, but not identical, substance to God the Father
"The homoiousians were considered heretical by those who believed in the full divinity of Christ"
Derived forms: homoiousians
Encyclopedia: Homoiousian