The term "transgender" has only very recently come into popular and political use, and its definition is critical to the politics that it engenders. The term, as I use it, includes all those people whose internally felt sense of core gender identity does not correspond to their assigned sex at birth or in which they were raised. This includes people who identify with the gender other than that assigned at birth as well as those who do not identify with any gender at all. It includes those who present themselves in their originally assigned sex, as well as those who present themselves in the sex which coheres with their actual identity (and therefore may include non- and pre- and post-operative transsexual people) and those who move back and forth between self-presentation as women and as men. It also includes those whose gender presentation is ambiguous in ways which don't permit them to present as either gendered male or female. In this usage, the term does not include those who are both physically and emotionally comfortable in their assigned sex and gender, even while they are challenging the social meanings that have been traditionally assigned to
that sex and gender.