noun ho·moi·ou·si·an \hō-ˌmi-ˈü-zē-ən, hä-, -ˈü-sē-\

Definition of HOMOIOUSIAN

:  an adherent of an ecclesiastical party of the fourth century holding that the Son is essentially like the Father but not of the same substance


Late Greek homoiousios of like substance, from Greek homoi- homeo- + ousia essence, substance, from ont-, ōn, present participle of einai to be — more at is
First Known Use: 1732


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