mo·​raine mə-ˈrān How to pronounce moraine (audio)
: an accumulation of earth and stones carried and finally deposited by a glacier
morainal adjective
morainic adjective

Examples of moraine in a Sentence

Recent Examples on the Web The project area is in part on Cox Ledge, which is dominated by complex glacial moraine habitat and is one of the last places in southern New England where Atlantic cod is found throughout all its life stages. Brian Amaral,, 24 Apr. 2023 Boats wouldn’t be able to navigate in certain areas, and the construction and operation of the project would disturb and move glacial moraine habitat and boulders. Brian Amaral,, 24 Apr. 2023 Researchers collecting samples from areas such as this terminal moraine (debris dumped by a glacier at its furthest point, or terminus) in British Columbia may have inadvertently provided a clue to how the first human migrations to the Americas occurred. Gemma Tarlach, Discover Magazine, 9 Nov. 2017 The Perros Glacier is unique and worth spending some time taking in from the lookout around the corner from the moraine if the weather's good. Cassidy Randall, Travel + Leisure, 5 Mar. 2023 Like Long Island, these are remnants of the rubble pile, or terminal moraine, pushed up by the ice sheet. Tom Yulsman, Discover Magazine, 30 Apr. 2014 Ground-penetrating radar determined that Imja Lake is held there by a very fragile moraine. Alton Byers, Discover Magazine, 21 May 2013 The moraine acts as a dam, stopping the water from spilling into the valley below. Sarah Kaplan, Anchorage Daily News, 30 Aug. 2022 Standing on the ice, Medrzycka noticed a pattern in the moraine -- the debris bank that generally runs along the top of the glacier. Julia Buckley, CNN, 4 Nov. 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'moraine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


French, from French dialect (Savoy) morêna

First Known Use

1783, in the meaning defined above

Time Traveler
The first known use of moraine was in 1783

Dictionary Entries Near moraine

Cite this Entry

“Moraine.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2023.

Kids Definition


mo·​raine mə-ˈrān How to pronounce moraine (audio)
: a pile of earth and stones carried and deposited by a glacier

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