0 used to describe someone who feels that they are not the same gender (= sex) as the physical body they was born with, or who does not fit easily into being either a male or a female:
Gender transition refers to the period during which transsexual persons begin changing their appearance and bodies to match their internal identity.
Bagger, who started life as a man and had a sex change operation, made history by becoming the first transsexual woman to play on the Ladies' European Tour.
1 a person who is transsexual
The episode featured transsexual actress Alexandra Billings as a patient with a unique diagnosis.
Paul, a transsexual man, felt forced to leave his employment.
