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guyot

[gee-oh] /giˈoʊ/
noun
1.
a flat-topped seamount, found chiefly in the Pacific Ocean.
Origin
1945-1950
1945-50; named after Arnold H. Guyot (1807-84), Swiss-born American geologist and geographer
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for guyot

guyot

/ˈɡiːˌəʊ/
noun
1.
a flat-topped submarine mountain, common in the Pacific Ocean, usually an extinct volcano whose summit did not reach above the sea surface Compare seamount
Word Origin
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
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Word Origin and History for guyot
n.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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guyot in Science
guyot
  (gē'ō)   
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for guyot

isolated submarine volcanic mountain with a flat summit more than 200 m (660 feet) below sea level. Such flat tops may have diameters greater than 10 km (6 miles). (The term derives from the Swiss-American geologist Arnold Henry Guyot.)

Learn more about guyot with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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