| nicaea | (n) an ancient city in Bithynia; founded in the 4th century BC and flourished under the Romans; the Nicene Creed was adopted there in 325 |
| nicaea | (n) the seventh ecumenical council in 787 which refuted iconoclasm and regulated the veneration of holy images, Syn. Second Council of Nicaea |
| nicaea | (n) the first ecumenical council in 325 which produced the wording of the Nicene Creed and condemned the heresy of Arianism, Syn. First Council of Nicaea |
| nicaean | (adj) of or relating to the ancient city of Nicaea in Asia Minor, Syn. Nicene |