The Collaborative International Dictionary of English v.0.48:
Proctocele \Proc"to*cele\, n. [Gr. ? anus + ? tumor.] (Med.) Inversion and prolapse of the mucous coat of the rectum, from relaxation of the sphincter, with more or less swelling; prolapsus ani. --Dunglison. [1913 Webster]WordNet (r) 3.0 (2006):
proctocele n 1: protrusion or herniation of the rectum into the vagina; can occur if pelvic muscles are weakened by childbirth [syn: rectocele, proctocele]