The state of being ameliorated; improvement.(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 "amelioration" in a sentence
"The converse process, amelioration, is evident in the slang uses of wicked, deadly, and sick."
"The Palestinians have shown nothing over the years if not a great willingness to reject short-term amelioration of living conditions on behalf of larger political principles."
"Policy decisions should be based on semi-empirical 10-20 year maximum likelihood projections of current trends, with the idea of amelioration of possible negative climate effects, and, honestly, exploitation of any anticipated positive consequences."