Find accurate definitions of over 5,000 Catholic terms and phrases (including abbreviations). Based on Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.
Mother of God. A term canonized by the Council of Ephesus (A.D. 431) in defense of Mary's divine maternity, against Nestorius, who claimed that she was only the mother of the man Christ (christotokos).