homoousion

noun

homo·​ou·​si·​on

-üz(h)ēˌän,

-üs(h)-

plural -s

often capitalized

: a theological doctrine holding that Christ is of one substance with God

the very existence of Christianity … was at stake over the Homoousion

—C. H. Turner

Word History

Etymology

Greek, accusative masculine singular of homoousios

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