/in fib'yeuh lay"sheuhn/ , n.
1. the stitching together of the vulva, often after a clitoridectomy, leaving a small opening for the passage of urine and menstrual blood.
2. the similar stitching of the prepuce.
[ 1640-50; ( infibulat ( us ), ptp. of infibulare to fasten the prepuce with a clasp ( in- IN- 2 + fibulare to fasten, v. deriv. of fibula FIBULA) + -ion- -ION ]