Quote Originally Posted by sandra-leigh View Post
There is a different meaning that is fairly common. The Oxford English Dictionary expresses it as, ""Of, relating to, or designating a person whose identity does not conform unambiguously to conventional notions of male or female gender roles, but combines or moves between these." Others instead write in terms of gender identity not matching the body.
Transsexuals, Gender Queer, Androgynous and identity Cross-dressers all fall directly under this distinction. The first because we move from Male to Female or from Female to Male. The others move between those roles

Quote Originally Posted by sandra-leigh View Post
The use as an umbrella term was apparently not until the 1980's, with no-operation transition apparently the meaning before that.
So, because a term has only been defined in a particular way for over 30 years, should we eschew that definition in favour of one that appeared when the term was first coined?