HOMOOUSIA Meaning of HOMOOUSIA in English | ̷ ̷ ̷ ̷|üzēə, -üsēə, -üzh(ē)ə, -üsh(ē)ə noun( -s )Etymology: New Latin, from Late Greek homoousios + Latin -ia -y: identity in essence or substance Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012