flash flood


noun

a sudden and destructive rush of water down a narrow gully or over a sloping surface, caused by heavy rainfall.

Nearby words

  1. flash burn,
  2. flash card,
  3. flash drive,
  4. flash eliminator,
  5. flash fiction,
  6. flash gun,
  7. flash in the pan,
  8. flash lamp,
  9. flash memory,
  10. flash method

Origin of flash flood

First recorded in 1935–40

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for flash flood

flash flood

noun

a sudden short-lived torrent, usually caused by a heavy storm, esp in desert regions
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

Science definitions for flash flood

flash flood

[ flăsh ]

A sudden, localized flood of great volume and short duration, typically caused by unusually heavy rain in a semiarid area. Flash floods can reach their peak volume in a matter of a few minutes and often carry large loads of mud and rock fragments.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.