From Encyclopedia Jr, free information reference for Kids
ADAPT is a disability rights organization. The name is an acronym used by a particular subset of the Disability Rights Movement (DRM) to bring the concerns of people with disabilities to widespread attention and to alleviate societal sanctions against people marginalized because of their "condition" such as physical or mental handicaps.
The original "meaning" of the acronym was Americans Disabled for Accessible Public Transit. That was when ADAPT picked up the baton on access to public transportation from the American Coalition of Citizens with Disabilities after ACCD's untimely demise. Later, with its enlarged mission and scope it has become Americans Disabled For Attendant Programs Today but is almost entirely used as a word without regard for any underlying textual "definition", making it a sort of semi-backronym.
The organization had its inception during protests in Colorado concerning accessibility to public transportation but has since become concerned with all aspects of inclusion for people with disabilities.
The organization's web site [1] proselytizes and recruits for those who wish to be activists in their efforts to improve society by fighting exclusion of people with disabilities.