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English

glaciation

|gla-ci-a-tion|

C1

/ˌɡleɪsiˈeɪʃən/

formation or coverage by glaciers

Etymology
Etymology Information

'glaciation' originates from Latin, specifically the word 'glacies', where the root 'glaci-' meant 'ice'.

Historical Evolution

'glaciation' changed from French and Middle English formations: Latin 'glacies' gave Old French/Medieval French forms related to 'glace' (ice) and 'glacer' (to freeze/cover with ice), later the French noun 'glaciation' was adopted into English as 'glaciation'.

Meaning Changes

Initially it referred to 'ice' or the action/condition of icing or being iced, but over time it evolved into the modern technical sense of 'the formation, spread, or presence of glaciers' and the geological intervals characterized by that process.

Meanings by Part of Speech

Noun 1

the process by which glaciers form, grow, and spread across an area (formation and movement of ice masses).

Scientists study past glaciation to understand how ice sheets affected global climate.

Synonyms

glaciogenesisglacial advanceice-sheet growth

Antonyms

deglaciationmeltingwarming

Noun 2

a geologic interval or event characterized by extensive glacier coverage (a glacial period or advance).

The last major glaciation in North America peaked during the Pleistocene.

Synonyms

Antonyms

interglacialwarm period

Noun 3

the condition of being covered by glaciers or ice (the state of glaciated terrain).

The map shows the extent of glaciation across the mountain range during the last ice age.

Synonyms

Antonyms

ice-freeexposed ground

Last updated: 2026/01/14 22:05