My definition of transgender

I've been asked to define what "Transgender" means. Well I will give my definition as I see it:

An individual who does not feel their biological sex is that of their gender identity and who has been diagnosed as  gender dysphoric, in my case, I am female but my body is that of a male.

The clinical definition is available on 'The Classification of (GID) in the Diagnostic and Statistical Manual", American Psychiatric Association. DSM-III-R. It is worth noting that this whiz bang read is as dull as paint drying and at no point did they actually bother to ask us how we would like defined.