Final answer:
A hymenectomy is the surgical procedure to remove the membrane covering the vaginal opening, known as the hymen.
Step-by-step explanation:
The surgical procedure to remove a membrane covering the vaginal opening is known as a hymenectomy. The hymen is a thin membrane that sometimes partially covers the entrance to the vagina. Although it can be ruptured through activities such as strenuous physical exercise or childbirth, a surgical hymenectomy may be performed for medical reasons or to repair or remove remnants of the hymen.