• synonyms


  1. a flat-topped seamount, found chiefly in the Pacific Ocean.
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Origin of guyot

1945–50; named after Arnold H. Guyot (1807–84), Swiss-born American geologist and geographer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for guyot

Historical Examples of guyot

  • He turned now to Guyot, who was kneeling by the Captain, and looking to his hurt.

    The Trampling of the Lilies

    Rafael Sabatini

  • At last the door opened and two women entered, followed by Guyot.

  • Guyot came forward sheepishly, and a trifle unsteady in his gait.

  • "At once, Captain," was the answer, and Guyot went about the business.

  • Bernier, who had been at school with Guyot, was not deceived.

    Lectures on the French Revolution

    John Emerich Edward Dalberg-Acton

British Dictionary definitions for guyot


  1. a flat-topped submarine mountain, common in the Pacific Ocean, usually an extinct volcano whose summit did not reach above the sea surfaceCompare seamount
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Word Origin for guyot

C20: named after A. H. Guyot (1807–84), Swiss geographer and geologist
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

Word Origin and History for guyot


"flat-topped submarine mountain," 1946, named for Swiss geographer/geologist Arnold Guyot (1807-1884).

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Online Etymology Dictionary, © 2010 Douglas Harper

guyot in Science


  1. A flat-topped, extinct submarine volcano having an elevation of over 1,000 m (3,280 ft) above the ocean floor. Guyots are thought to form as volcanos in sea-floor spreading zones and to become extinct as they move away from the spreading zones through plate tectonic forces. Their flat tops are believed to form by the erosional action of waves when they initially project above sea level.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.