Transsexualist
"Transsexualist" in a Sentence (2 examples)
Most transsexualists are males […] Pseudo-hermaphrodites or other intersexes are not to be confused with transsexualists; transvestites may be transsexualists, but not necessarily.
[M]oreover the femininity would be required for the body only, not for the mind. For if a transvestite wanted to be female all the time, he would be a transsexualist.