mud·​flow ˈməd-ˌflō How to pronounce mudflow (audio)
: 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 Southern California Edison has agreed to pay $80 million to cover costs and damages from the 2017 Thomas fire, a massive blaze in Ventura and Santa Barbara counties that killed two people and later triggered a massive mudflow that resulted in 23 deaths. Brittny Mejia, Los Angeles Times, 26 Feb. 2024 California emergency response teams now coordinate with the National Weather Service to warn people on social media platforms of mudflow risk in the days preceding big rainstorms. Audrey Gray, WIRED, 24 Feb. 2024 Visitors should, however, watch out for lahars, which are mudflows or debris flows. Eve Chen, USA TODAY, 17 Feb. 2024 If these totals hold true, the Southland is likely to see widespread flooding and mudflows and debris flows in hillside areas, especially those hit by recent fires. Rong-Gong Lin Ii, Los Angeles Times, 4 Feb. 2024 The natural disasters that are not covered by rental insurance include floods, mudflows, sinkholes and earthquakes. Karen Garcia, Los Angeles Times, 6 Feb. 2024 In Culver City, an evacuation warning was issued for the Upper Crest neighborhood after mudflows were reported behind several homes. Kerry Breen, CBS News, 6 Feb. 2024 The Los Angeles Fire Department received reports of 22 minor mudflows; Highway 138 in the Antelope Valley was closed Sunday by running water and debris flows; and flooding on the 5 Freeway in Sun Valley severely limited access to northbound lanes early Monday. Rong-Gong Lin Ii, Los Angeles Times, 21 Aug. 2023 Video and images showed mudflows and rescues as residents grappled with the unprecedented deluge. CBS News, 21 Aug. 2023

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

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of mudflow was in 1869

Dictionary Entries Near mudflow

Cite this Entry

“Mudflow.” Dictionary, Merriam-Webster, Accessed 25 May. 2024.

Kids Definition


mud·​flow ˈməd-ˌflō How to pronounce mudflow (audio)
: a moving mass of mud made up of soil and rainwater or melted snow

More from Merriam-Webster on mudflow

Love words? Need even more definitions?

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