Main Entry:

¹pro·lapse

Pronunciation:

\prō-ˈlaps, ˈprō-ˌ\

Function:

noun

Etymology:

New Latin prolapsus, from Late Latin, fall, from Latin prolabi to fall or slide forward, from pro- forward + labi to slide — more at pro-, sleep

Date:

circa 1834

: the falling down or slipping of a body part from its usual position or relations