homoousian Meaning, Definition & Usage

Ho`mo*ou"si*an noun
Etymology
Gr. the same + being, essence, substance.
Definitions
  1. (Eccl. Hist.) One of those, in the 4th century, who accepted the Nicene creed, and maintained that the Son had the same essence or substance with the Father; -- opposed to homoiousian.
Ho`mo*ou"si*an adjective
Definitions
  1. Of or pertaining to the Homoousians, or to the doctrines they held.

Webster 1913