What is "pontormo"

Jacopo Carucci (May 24, 1494 – January 2, 1557), usually known as Jacopo da Pontormo, Jacopo Pontormo or simply Pontormo, was an Italian Mannerist painter and portraitist from the Florentine School. His work represents a profound stylistic shift from the calm perspectival regularity that characterized the art of the Florentine Renaissance. He is famous for his use of twining poses, coupled with ambiguous perspective; his figures often seem to float in an uncertain environment, unhampered by the forces of gravity.