gender reassignment
noun /ˌdʒendə ˌriːəˈsaɪnmənt/
/ˌdʒendər ˌriːəˈsaɪnmənt/
[uncountable]- the act of changing a person’s sex by a medical operation in which parts of their body are changed so that they become like a person of the opposite sex
性别再造手术；变性手术