I. prōˈlaps, ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: New Latin prolapsus, from Late Latin, fall, from Latin prolapsus, past participle of prolabi to slide forward, fall down, from pro- forward, down + labi to slide, fall — more at pro- , sleep
1. : the falling down of an internal part of the body
prolapse of the uterus
2. : the slipping of a body part from its usual position in relation to other parts
prolapse of an intervertebral disc
II. intransitive verb
: to fall or slip forward, down, or out (as in a prolapse)