• synonyms


[noun out-krop; verb out-krop]
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  1. Geology.
    1. a cropping out, as of a stratum or vein at the surface of the earth.
    2. the exposed portion of such a stratum or vein.
  2. something that emerges suddenly or violently in the manner of an outcrop; outbreak: an outcrop of student demonstrations.
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verb (used without object), out·cropped, out·crop·ping.
  1. to crop out, as strata.
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Origin of outcrop

First recorded in 1760–70; noun use of verb phrase crop out
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for outcropping

development, reaction, product, decision, consequence, outcome, issue, event, conclusion, emanation, consummation, crop, close, settlement, proceeds, payoff, completion, end, sequence, fruition

Examples from the Web for outcropping

Contemporary Examples of outcropping

Historical Examples of outcropping

  • They never noticed the little heap of specimens from the outcropping.

    When the West Was Young

    Frederick R. Bechdolt

  • I had one of the working eyes dig a cave in an outcropping of rock and wait for him.

    The Repairman

    Harry Harrison

  • Not long thereafter, he rounded an outcropping of rock and it lay before him.


    Charles Louis Fontenay

  • But at this point, an expanse of outcropping rock baffled them completely.

  • But the outcropping willows at least served one useful purpose.

British Dictionary definitions for outcropping


noun (ˈaʊtˌkrɒp)
  1. part of a rock formation or mineral vein that appears at the surface of the earth
  2. an emergence; appearance
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verb (ˌaʊtˈkrɒp) -crops, -cropping or -cropped (intr)
  1. (of rock strata, mineral veins, etc) to protrude through the surface of the earth
  2. another word for crop out
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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 outcropping



1805, in geology, "exposure of rocks at the surface," from out + crop (n.) in its sense of "sprout, head."

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Online Etymology Dictionary, © 2010 Douglas Harper

outcropping in Science


  1. An area of visible bedrock that is not covered with soil.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.