Final answer:
A rectocele is the medical term for a herniation or protrusion of the rectum through the posterior vaginal wall.
Step-by-step explanation:
The medical term for a herniation or protrusion of the rectum through the posterior vaginal wall is rectocele. A rectocele occurs when the thin wall of tissue between the rectum and vagina weakens, causing the rectum to push forward into the vagina. This condition is more common in women, especially after childbirth or during menopause.
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