I. -ən noun
( -s )
Usage: often capitalized
Etymology: modification (influenced by Late Greek homoousios ) of Late Latin homousianus, adjective & noun, from Late Greek homoousios of the same substance (from Greek homo- hom- + ousios, from ousia substance) + Latin -anus -an
: one that accepts the homoousian doctrine of the Nicene Creed
II. adjective
1.
a. : holding to the doctrine of the Nicene Creed that the Son of God is of the same essence or substance with the Father
b. : of or relating to the doctrine of homoousia — distinguished from homoiousian ; compare heteroousian
2. : of or relating to the homoousians
3. : of or relating to homoousia