Dictionary
mel•io•ra•tion
Pronunciation: (mēl"yu-rā'shun, mē"lē-u-), [key]—
n.
1. Historical Ling.semantic change in a word to a more approved or more respectable meaning. Cf.
pejoration (def. 2).
2. amelioration.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.