mudflow

[ muhd-floh ]
/ ˈmʌdˌfloʊ /

noun Geology.

a flow of mixed earth debris containing a large amount of water.
the dried-out product of such a flow.

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What does “vacillate” mean?
Also called mud slide, mud·spate [muhd-speyt]. /ˈmʌdˌspeɪt/.

Origin of mudflow

First recorded in 1900–05; mud + flow
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for mudflow

mudflow
/ (ˈmʌdˌfləʊ) /

noun

geology a flow of soil or fine-grained sediment mixed with water down a steep unstable slope
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for mudflow

mudflow
[ mŭdflō′ ]

A downhill movement of soft, wet, unconsolidated earth and debris, made fluid by rain or melted snow and often building up great speed.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.