the act or an instance of improving or the state of being improved
WordReference Random House Unabridged Dictionary of American English © 2025
mel•io•ra•tion
(mēl′yə rā′shən, mē′lē ə-),USA pronunciation n.
- Linguistics[Historical Ling.]semantic change in a word to a more approved or more respectable meaning. Cf. pejoration (def. 2).
- amelioration.
- Late Latin meliōrātiōn- (stem of meliōrātiō), equivalent. to meliōrāt(us) (see meliorate) + -iōn- -ion
- 1620–30
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'melioration' also found in these entries (note: many are not synonyms or translations):