la·​har | \ ˈlä-ˌhär How to pronounce lahar (audio) \

Definition of lahar

: a moving fluid mass composed of volcanic debris and water

Examples of lahar in a Sentence

Recent Examples on the Web Seattle is probably safely out of reach of any future volcanic lahars, Moran said. The Seattle Times,, "Yes, Cascades volcanoes could blow -- but not like Hawaii's," 8 May 2018 A few days later, rainstorms caused lahars, or ashen mudslides, which damaged the areas further. Lila Thulin, Smithsonian, "Riveting Footage Captures the Destruction of Last Year’s Volcanic Eruptions in Hawaii and Guatemala," 6 Sep. 2019 Also of concern is the potential for what are known as lahars, or flows of debris. Maya Wei-haas, Smithsonian, "Geology Makes the Mayon Volcano Visually Spectacular—And Dangerously Explosive," 19 Jan. 2018 The projected paths of lahars cover communities in the Stillaguamish and Skagit valleys. Kari Bray, The Seattle Times, "‘Very high threat’ Snohomish County volcano may get new monitoring stations," 19 Aug. 2018 Orting is the town most vulnerable to lahar damage from Mount Rainier, according to the U.S. Geological Survey. Bradford Betz, Fox News, "Hawaii volcano stokes fears of West Coast eruptions," 13 May 2018 Video showed lahar slamming into and partly destroying a highway bridge. Carolina Gamazo And Kate Linthicum,, "Rescuers frantically dig through ash after Guatemala volcano kills at least 62," 4 June 2018 Hernandez peers into the narrow open space and points to the back wall of the house, where the lahar hit the structure. Mark Stevenson, Fox News, "At Guatemala volcano, families left on own to keep searching," 8 June 2018 Huge lahars are the greatest risk posed by an eruption at Mount Rainier, according to the USGS. Mahita Gajanan, Time, "8 of the World’s Most Dangerous Volcanoes, According to Experts," 6 June 2018

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

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First Known Use of lahar

1929, in the meaning defined above

History and Etymology for lahar


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Last Updated

11 Oct 2019

Time Traveler for lahar

The first known use of lahar was in 1929

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More from Merriam-Webster on lahar

Rhyming Dictionary: Words that rhyme with lahar Encyclopedia article about lahar

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to engage in dissolute behavior

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