noun
[ usually sing. ] a medical operation in which parts of a person's body are changed so that they become like a person of the opposite sex
noun
[ usually sing. ] a medical operation in which parts of a person's body are changed so that they become like a person of the opposite sex
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005