fourth lateran council: the Lateran Council in 1215 was the most important council of the Middle Ages; issued a creed against Albigensianism, published reformatory decrees, promulgated the doctrine of transubstantiation, and clarified church doctrine on the Trinity and Incarnation
lateran council: any of five general councils of the Western Catholic Church that were held in the Lateran Palace
salute: an act of greeting with friendly words and gestures like bowing or lifting the hat