melioration
英[ˌmi:ljə'reɪʃən]
美[ˌmiljə'reɪʃən]
英英词典释义
Noun
1. the act of relieving ills and changing for the better
2. a condition superior to an earlier condition;
"the new school represents a great improvement"3. the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning