trans trans /trænz/

adjective

1. Involving a partial or full reversal of gender  ( transgender , transgendered , trans )
   involving a partial or full reversal of gender
   
2. Identifying with the opposite gender from the one that one is born with  ( transsexual , trans )
   identifying with the opposite gender from the one that one is born with
   

noun

1. A person whose sexual identification is entirely with the opposite sex  ( transexual , transsexual , trans )
   a person whose sexual identification is entirely with the opposite sex
   
2. A person who has undergone a sex change operation  ( transexual , transgendered , transsexual , trans )
   a person who has undergone a sex change operation