Definition of subincision in US English:

subincision

noun

  • The cutting of an opening into the urethra on the underside of the penis, especially as a ritual practice in Australian Aboriginal and certain other societies; an instance of this; a cut of this kind.

Origin

Late 19th century (in an earlier sense). From sub- + incision.

Pronunciation

subincision

/ˌsʌbɪnˈsɪʒn/