Definition from Wiktionary, the free dictionary
meliorator (plural meliorators)
- One who meliorates; an improver.
2007 October 21, Harry Hurt Iii, “A Lens on Wealth, From All the Angles”, in New York Times:
- Who can fault Ralph Waldo Emerson for observing that “the greatest meliorator of the world is selfish, huckstering trade?”