n.
Pronunciation: h ō - ˌ m ō - ' ü-z ē - ə n, hä-, - ' ü-s ē -
Function: noun
Etymology: Late Greek homoousios of the same substance, from Greek hom- + ousia substance ― more at HOMOIOUSIAN
Date: 1565
: an adherent of an ecclesiastical party of the fourth century holding to the doctrine of the Nicene Creed that the Son is of the same substance with the Father