an ancient city in Bithynia; founded in the 4th century BC and flourished under the Romans; the Nicene Creed was adopted there in 325

[ Syn: nicaea ]

the seventh ecumenical council in 787 which refuted iconoclasm and regulated the veneration of holy images

[ Syn: nicaea , second council of nicaea ]

the first ecumenical council in 325 which produced the wording of the Nicene Creed and condemned the heresy of Arianism

[ Syn: nicaea , first council of nicaea ]