Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A mass of volcanic fragments, often mixed with water, moving rapidly down the side of a volcano.
  • noun The deposit produced by a lahar.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun geology A volcanic mudflow.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an avalanche of volcanic water and mud down the slopes of a volcano

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Javanese, lava.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Javanese.

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Examples

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    WN.com - Financial News 2010

  • Active river channels and those perennially identified as lahar prone in the southern sector should also be avoided especially during bad weather conditions or when there is heavy and prolonged rainfall.

    ReliefWeb - Headlines 2009

  • This combined with the tons of volcanic ash and debris that had collected on Mayon's slopes, creating a fast-moving avalanche of mud and boulders called lahar, destroying villages and leaving 1,266 people dead.

    BBC News | World | Full Feed 2009

  • This combined with the tons of volcanic ash and debris that had collected on Mayon's slopes, creating a fast-moving avalanche of mud and boulders called lahar, destroying villages and leaving 1,266 people dead.

    BBC News | World | Full Feed 2009

  • In extreme scenarios, a flood becomes a massive debris flow known as a lahar-a deadly tsunami of mud, boulders, and uprooted trees that can gouge 100-foot-deep gullies, flatten forests, and jump longstanding banks.

    unknown title 2009

Comments

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  • A mud-flow of volcanic ash mixed with water. (OED)

    March 11, 2007

  • A solid that flows, cold and plastic,

    A smothering river fantastic -

    It's swift and bizarre,

    The deadly lahar,

    Cruel gruel of debris pyroclastic.

    January 25, 2015

  • Andrew Arbuckle

    @AndrewArbuckle

    There is literally nothing scarier than a pyroclastic flow or lahar....maybe a tsunami, but damn!

    May 1, 2016