[noun out-krop; verb out-krop]


  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.
something that emerges suddenly or violently in the manner of an outcrop; outbreak: an outcrop of student demonstrations.

verb (used without object), out·cropped, out·crop·ping.

to crop out, as strata.

Nearby words

  1. outcast,
  2. outcaste,
  3. outclass,
  4. outclimb,
  5. outcome,
  6. outcross,
  7. outcry,
  8. outcurve,
  9. outdare,
  10. outdate

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. 2019

Examples from the Web for outcrop

British Dictionary definitions for outcrop


noun (ˈaʊtˌkrɒp)

part of a rock formation or mineral vein that appears at the surface of the earth
an emergence; appearance

verb (ˌaʊtˈkrɒp) -crops, -cropping or -cropped (intr)

(of rock strata, mineral veins, etc) to protrude through the surface of the earth
another word for crop out
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 outcrop



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

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for outcrop



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