mo·​raine | \ mə-ˈrān \

Definition of moraine

: an accumulation of earth and stones carried and finally deposited by a glacier

Keep scrolling for more

Other Words from moraine

morainal \ -​ˈrā-​nᵊl \ adjective
morainic \ -​ˈrā-​nik \ adjective

Examples of moraine in a Sentence

Recent Examples on the Web

The prevalence of washboard terrain at lower elevations does tend to suggest the involvement of glaciers, but moraines are unlikely to account for the terrain. John Timmer, Ars Technica, "Enigmatic ridges on Pluto may be the remains of vanished nitrogen glaciers," 17 Nov. 2018 The easiest explanation for a series of ridges like this would be a moraine, debris left behind at the edge of a glacier's furthest extent. John Timmer, Ars Technica, "Enigmatic ridges on Pluto may be the remains of vanished nitrogen glaciers," 17 Nov. 2018 She and her husband run an organic beef, fruit and vegetable farm on the slopes of a glacial moraine in Minnesota. Emily Hopkins,, "Your produce is less healthy than it was 70 years ago. These farmers might change that," 4 July 2018 The terminal moraine, the mounds of rubble left behind, form much of their high ground…. Dino Grandoni, Washington Post, "The Energy 202: Scott Pruitt takes another significant policy step as controversies swirl," 8 June 2018 The largest deposits form what geologists call a terminal moraine. William J. Broad, New York Times, "How the Ice Age Shaped New York," 5 June 2018 Try the Parnell segment for an especially hilly hike along glacial features including moraines, kettles, eskers and drumlins. Chelsey Lewis, Milwaukee Journal Sentinel, "Wisconsin bucket list: 20 things you have to do," 17 May 2018 But the finale, including the two lakes — one glacier-fed and mint green, the other a deep aquamarine — separated by a single moraine, and the towering peaks on all sides make the effort worth it. Bailey Berg, Anchorage Daily News, "Make the most of your trip with these hikes near Anchorage," 2 May 2018 The torrents are so forceful there is a roar in the air—water gouging its way through old moraines and rolling boulders along the bottom of the riverbeds. Nathaniel Wilder, Smithsonian, "A Daring Journey Into the Big Unknown of America’s Largest National Park," 18 Apr. 2018

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

See More

First Known Use of moraine

1783, in the meaning defined above

History and Etymology for moraine

French, from French dialect (Savoy) morêna

Keep scrolling for more

Learn More about moraine

Statistics for moraine

Look-up Popularity

Time Traveler for moraine

The first known use of moraine was in 1783

See more words from the same year

Keep scrolling for more

More Definitions for moraine


mo·​raine | \ mə-ˈrān \

Kids Definition of moraine

: a pile of earth and stones left by a glacier

Keep scrolling for more

More from Merriam-Webster on moraine

Rhyming Dictionary: Words that rhyme with moraine

Spanish Central: Translation of moraine

Nglish: Translation of moraine for Spanish Speakers Encyclopedia article about moraine

Comments on moraine

What made you want to look up moraine? Please tell us where you read or heard it (including the quote, if possible).


to deny responsibility for

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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