Meaning of “glaciation” in the English Dictionary

british dictionary

"glaciation" in British English

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glaciationnoun [ U ]

uk /ˌɡleɪ.siˈeɪ.ʃən/ us /ˌɡleɪ.siˈeɪ.ʃən/

the forming, existence, or movement of glaciers over the surface of the earth:

This landscape shows many clear features of glaciation.

(Definition of “glaciation” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)