female genital mutilation       
noun [ U ] uk/ˌfiː.meɪl ˌdʒen.ɪ.təl mjuː.tɪˈleɪ.ʃən/ us/ˌfiː.meɪl ˌdʒen.ə.t̬əl mjuː.t̬əlˈeɪ.ʃən/ (also FGM)
 女性割礼
the practice of cutting away parts of a girl's or woman's outer sex organs for traditional or religious reasons
  a campaign against female genital mutilation 反对女性割礼的运动