A preservationist generally refers to one who wishes to preserve a historic structure from demolition or degradation. Persons who work to preserve ancient or endangered languages are also referred to as preservationists. It's also occasionally used as a label by those who wish to discredit conservationists and environmentalists. The environmental and conservation movements do wish to preserve ecosystems and the natural environment but this's best described as conservation or environmentalism ra… (More on Preservationist)