D defs.my
Entry 2 senses · 2 variants Webster, 1913

Homoousian

· Ho·mo·ou·si·an · IPA /hɒməʊˈuːzɪən/
01 n. 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 Fat…
  1. 1.
    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.(Eccl. Hist.)
02 a. Of or pertaining to the Homoousians, or to the doctrines they held.
  1. 1.
    Of or pertaining to the Homoousians, or to the doctrines they held.