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1. A person with the external genitalia and secondary sexual characteristics of one sex, but whose personal identification and psychosocial configuration is that of the opposite sex; a study of morphologic, genetic, and gonadal structure may be genitally congruent or incongruent. 2. Denoting or relating to such a person. 3. Relating to medical and surgical procedures designed to alter a patient's external sexual characteristics so that they resemble those of the opposite sex.
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trans·sex·u·al also tran·sex·u·al (')tran(t)s-'sek-sh(-ə)-wəl, -'sek-shəl n a person who psychologically identifies with the opposite sex and may seek to live as a member of this sex esp. by undergoing surgery and hormone therapy to obtain the necessary physical appearance (as by changing the external sex organs)
transsexual also transexual adj
trans·sex·u·al·ism also tran·sex·u·al·ism -wə-.liz-əm, -shə-.liz- n
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trans·sex·u·al (tran-sekґshoo-əl) 1. a person affected by transsexualism. 2. a person whose external anatomy has been changed to that of the opposite sex.Medical dictionary. 2011.