de·​gla·​ci·​a·​tion | \ (ˌ)dē-ˌglā-shē-ˈā-shən How to pronounce deglaciation (audio) , -sē- \

Definition of deglaciation

: the melting of ice specifically : the retreat of a glacier or ice sheet

Other Words from deglaciation

deglaciated \ (ˌ)dē-​ˈglā-​shē-​ˌā-​təd How to pronounce deglaciation (audio) , -​sē-​ \ adjective

Examples of deglaciation in a Sentence

Recent Examples on the Web This rise happened from about 17,500 years ago to 11,700 years ago, causing the deglaciation that made Earth more habitable. Anil Ananthaswamy, Smithsonian Magazine, 27 Feb. 2020 Which means that the 200 or so samples collected in the field will dramatically improve not only our understanding of past deglaciation events but also the potential futures these ice sheets might breed. Elizabeth Rush, National Geographic, 7 Mar. 2019 The Reef struggled with period of rapid deglaciation 17,000 and 13,000 years ago, respectively. David Grossman, Popular Mechanics, 29 May 2018 The next two events occurred during deglaciation that saw rising sea levels and the drowning of the reef, which then adjusted by migrating landward. David Carrig, USA TODAY, 29 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deglaciation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of deglaciation

1895, in the meaning defined above

Learn More About deglaciation

Time Traveler for deglaciation

Time Traveler

The first known use of deglaciation was in 1895

See more words from the same year

Dictionary Entries Near deglaciation




See More Nearby Entries 

Statistics for deglaciation

Cite this Entry

“Deglaciation.” Dictionary, Merriam-Webster, Accessed 28 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on deglaciation Encyclopedia article about deglaciation


Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!