mud·​flow | \ ˈməd-ˌflō How to pronounce mudflow (audio) \

Definition of mudflow

: a moving mass of soil made fluid by rain or melting snow also : lahar

Examples of mudflow in a Sentence

Recent Examples on the Web More than 150,000 Washingtonians live and work on top of mudflows from Rainier that have occurred within the past few thousand years. Steve Olson, Scientific American, "Inside Mount Saint Helens, Scientists Find Clues to Eruption Prediction," 1 Nov. 2017 That’s exactly what happened thousands of years ago when a group of at least 20 prehistoric modern humans walked through a volcanic mudflow produced by the Oldoinyo L’engai volcano, still active today in what’s now Tanzania. Popular Science, "Prehistoric footprints reveal how ancient men and women divided labor," 20 May 2020 But mudflows and giant, sweeping clouds of hot, toxic gas and volcanic matter destroyed the wealthy coastal town of Herculaneum. Ashley Strickland, CNN, "Some Mount Vesuvius victims suffered slowly, study says," 23 Jan. 2020 If activity ramps up, Taal is capable of producing all three of the deadliest volcanic hazards: tsunamis, mudflows, and superheated flows of gas and debris. Andrea Thompson, Scientific American, "Will Taal Volcano Explosively Erupt? Here’s What Scientists Are Watching," 14 Jan. 2020 The ash will reportedly reduce visibility and trigger mudflow due to existing rain conditions. Fox News, "Massive Philippines volcano eruption sends ash 9 miles up, stunning images reveal," 17 Jan. 2020 Tsunamis can also be triggered by large, superheated currents of volcanic gas, ash and other debris—called pyroclastic flows—or by mudflows caused as volcanic ash mixes with abundant water. Andrea Thompson, Scientific American, "Will Taal Volcano Explosively Erupt? Here’s What Scientists Are Watching," 14 Jan. 2020 More than 60 homes have been destroyed and an additional 400 have been damaged by the mudflows, according to Santa Barbara County. Laris Karklis, Washington Post, "Before and after the mudslides in Montecito," 19 Jan. 2018 Firefighters battling the Valley fire in San Bernardino County suddenly had to make way for flash flooding and mudflows. Howard Blume,, "Another night of terror and calamity for Santa Barbara County as new destructive fire sweeps through," 8 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mudflow.' 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 mudflow

1869, in the meaning defined above

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Time Traveler for mudflow

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The first known use of mudflow was in 1869

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Last Updated

11 Jun 2020

Cite this Entry

“Mudflow.” Dictionary, Merriam-Webster, Accessed 5 Jul. 2020.

More from Merriam-Webster on mudflow

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

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