melioration /.mi:ljә'reiʃәn/ 📖 中文释义 n. 改善 🔗 释义中的汉语词 改善 📘 English Definition（英文释义） n. the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning ← meliorating M 字母词表 meliorative →