melioration

英 [ˌmiːljə'reɪʃən] 美 [ˌmiːljə'reɪʃən]

• n. 改善；改进；改良

英英释义

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

词汇搭配

• land melioration 土地土壤改良...
• climate melioration 气候改良

近反义词

【近义词】

• amelioration 改善
• betterment 改善
• improvement 改进