One who advocates preservation, especially of natural areas, historical sites, or endangered species.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "preservationist" in a sentence
"One only need look at Amboseli National Park in Kenya to see what the "preservationist" ethic can do to an entire ecosystem."
"Bristling at the term "preservationist," the Ramblers articulated their quest in manifestoes that appeared in album booklets, along with detailed song explications, always honoring the sources."
"There is also a tendency with such thinking to view the natural world as immutable and unchanging; a "preservationist" outlook which is silly as nature is always changing, whether humans "do" anything or not."