circumcision

Concise Oxford English Dictionary © 2008 Oxford University Press:
circumcision/sɜːkəmˈsɪʒn/

▶noun

• 1 the action or practice of circumcising.

  ■ (also female circumcision) (in some cultures) the traditional practice of cutting off the clitoris and sometimes the labia of girls or young women.

• 2 (Circumcision) (in church use) the feast of the Circumcision of Christ, 1 January.