Transsexual: It refers to people who identifies entirely with the gender role opposite to the sex assigned to at birth and seeks to live permanently in the preferred gender role. This often goes along with strong rejection of their physical primary and secondary sex characteristics and wish to align their body with their preferred gender. Transsexual people might intend to undergo, are undergoing or have undergone gender reassignment treatment (which may or may not involve hormone therapy or surgery).
Source: ILGA Europe
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