Someone who cross-dresses, i.e dressing outside of
gender. Sometimes
done to look like a convincing member of the opposite sex ("passing"), sometimes not. Sometimes a
secret, sometimes not. Nothing to do with sexuality. Not necessarily to do with desiring a sex change either.
I can't believe there is no
definition for transvestite on urban
dictionary! Now's my chance...
John: Why is Adam wearing a dress and a wig? Does he want to be a woman?
Carla: No, he's just a transvestite. He likes to cross dress.