phallectomy

例句：

1. 1.The procedure is a surgical removal of the penis.
   该手术是外科切除阴茎。
2. 2.He underwent circumcision as a child.
   他小时候接受了包皮环切术。
3. 3. The animal was neutered for medical reasons.
   这只动物因医疗原因被去势。