va·sec·to·my /-təmi/
  輸精管切除
  va·sec·to·my /-təmɪ/ 名詞
  輸精管切除術
  Vas·ec·to·my n.   Surg. Resection or excision of the vas deferens.
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  vasectomy
       n : surgical procedure that removes all or part of the vas
           deferens (usually as a means of sterilization); is
           sometimes reversible