IPA: /dɪˌɡleɪʃiˈeɪʃən/
KK: /dɪˌɡleɪʃiˈeɪʃən/
The process of ice melting and revealing the land that was covered by glaciers.
The deglaciation of the region has revealed ancient landscapes and ecosystems.
Deglaciation is formed from "de-" (meaning removal or reversal) and "glacies" (from Latin, meaning ice). The term describes the process of the removal or melting of ice, particularly in relation to glaciers.
Think of 'removing ice' ('de-') from glaciers ('glacies') — that's what deglaciation means.