lahar

noun

la·​har ˈlä-ˌhär How to pronounce lahar (audio)
: a moving fluid mass composed of volcanic debris and water

Examples of lahar in a Sentence

Recent Examples on the Web
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According to authorities, this time lahars pose the greatest danger. David Bressan, Forbes.com, 20 June 2025 The initial blast; flying debris; hot gases; and fast-moving mud, rock, water (known as lahars) all present different hazards, and, therefore different avoidance strategies. Paul Smaglik, Discover Magazine, 31 Mar. 2025 Pyroclastic flows and mudflows, or lahars, could affect the upper Chakachatna River valley. Paul Du Quenoy, MSNBC Newsweek, 27 Mar. 2025 But one of the biggest threats to people who live near the volcano are lahars, or muddy flows of rock, ash and ice that rush downstream like fast flowing concrete. Greg Wehner, Fox News, 8 Oct. 2024 See All Example Sentences for lahar

Word History

Etymology

Javanese

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of lahar was in 1929

Browse Nearby Words

Cite this Entry

“Lahar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lahar. Accessed 11 Sep. 2025.

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