I. A slipping, falling: “ingredi sine casu aut prolapsione,” Cic. Cael. 17, 41.—
II. A falling or tumbling down: “aedificiorum prolapsiones,” Suet. Aug. 30.—
III. Trop., an error, misstep (late Lat.): “intempestiva temeritas et prolapsio,” Amm. 20, 4, 15; Ambros. de Noë, 14, 49; id. Bon. Mort. 10, 47.