Sentence:  Their first step was to reclaim the power to name themselves: <WSD>transgender</WSD> is now the term most widely used, and it encompasses everyone from cross-dressers (those who dress in clothes of the opposite sex) to transsexuals (those who surgically "correct" their genitals to match their "real" gender). 
Meaning of the word marked with <WSD> tags:  Not identifying with culturally conventional gender roles and categories of male or female; having changed gender identity from male to female or female to male, or identifying with elements of both, or having some other gender identity; or, pertaining to such people. (Compare "genderqueer", "transsexual".)