#cut.opening__cutting  the act of penetrating or opening open with a sharp edge; "his cut in the lining revealed the hidden jewels"
  supertype:  #opening.change_of_integrity  becoming open or being made open; "the opening of his arms was the sign I was waiting for"
  subtype:  #nick__notch__snick  a small cut
  subtype:  #slash__gash  a strong sweeping cut made with a sharp instrument
  subtype:  #surgical_incision__incision__section  the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
     subtype:  #gastromy  surgical incision into the stomach
     subtype:  #keratotomy  surgical incision into the cornea
        subtype:  #radial_keratotomy  radial pattern of incisions in the cornea that cause the cornea to bulge; performed to correct myopia
     subtype:  #perineotomy  surgical incision into the perineum
        subtype:  #episiotomy  surgical incision of the perineum to enlarge the vagina and so facilitate delivery during childbirth
     subtype:  #laparotomy  surgical incision into the abdominal wall; often done to examine abdominal organs
        subtype:  #laparoscopy  laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes)
     subtype:  #orchotomy  surgical incision into the testis to obtain material for analysis (as in cases of abnormally low sperm count)
     subtype:  #sclerotomy  surgical incision of the sclerotic coat of the eye
     subtype:  #nephrotomy  incision into a kidney (usually to remove a kidney stone)
     subtype:  #valvotomy__valvulotomy  incision into a stenosed cardiac valve to relieve the obstruction
     subtype:  #venesection__phlebotomy  surgical incision into a vein; used to treat hemochromatosis
     subtype:  #vasotomy__vasosection  surgical incision into or division of the vas deferens

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