deglaciation
/ˌdiːgleɪʃɪˈeɪʃən/noun
mass noun
1- Geology the disappearance of ice from a previously glaciated region【地质】冰川退缩。
1.1
- count noun a period of geological time during which this takes place冰川退缩时期：
the last deglaciation.
上一个冰川退缩时期。