Chevet
chevet
Term in French architecture for a peculiar arrangement of the eastern end of a church, when the apse is enclosed by an open screen of columns on the ground floor, opening into an aisle , which again opens into three or more apsidal chapels. An example of this is the Basilica of Saint Martin, Tours, from which others have been copied. Later the easternmost of the crown of chapels became the Lady Chapel.
Fuente: New Catholic Dictionary
Chevet
(capitium) is the place corresponding to the position of our Lord’s head upon the cross, on the ground-plan of a church, in which the altar represents his head, and the radiating chapels the glory about it. Like the apse, it took its origin from. the junction of the circular mortuary chapel with the choir, by the removal of the intermediate walls, in a basilica. The tomb-house has been preserved at Canterbury, Sens, Drontheimj Batalha, Burgos, and Murcia. The chevet appears at Westminster, Pershore, and Tewkesbury. In France its screen of tall pillars is very striking.