outcrop

1 of 2

noun

out·​crop ˈau̇t-ˌkräp How to pronounce outcrop (audio)
1
: a coming out of bedrock or of an unconsolidated deposit to the surface of the ground
2
: the part of a rock formation that appears at the surface of the ground

outcrop

2 of 2

verb

out·​crop ˈau̇t-ˌkräp How to pronounce outcrop (audio)
ˌau̇t-ˈkräp
outcropped; outcropping; outcrops

intransitive verb

1
: to project from the surrounding soil
ledges outcropping from the eroded slope
2
: to come to the surface : appear

Examples of outcrop in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Massive groupers patrol rocky outcrops, brightly colored nudibranchs munch on algae, and schools of large corbs glide through the shallows, undisturbed by fishing lines. Annika Hammerschlag, Christian Science Monitor, 9 June 2025 Here, find Panola Mountain, a 100-acre granite outcrop similar to Stone Mountain with its own diverse story and history. Nicole Letts, Southern Living, 20 May 2025
Verb
The previously oldest rock formation was the Acasta Gneiss, outcropping in the Slave Craton of the Canadian Northwest Territories. David Bressan, Forbes.com, 27 June 2025 The permit area contains two outcropping porphyry targets (Ricardo Herrera and Sortilegio) and one zone with signatures of both porphyry-epithermal and skarn mineralization (Vista Alegre). Sacramento Bee, 2 July 2024 See All Example Sentences for outcrop

Word History

Etymology

Noun

out entry 1 + crop entry 2, after crop out "to protrude from the ground"

Note: See the note at crop entry 2 regarding geological senses of the verb.

Verb

derivative of outcrop entry 1

First Known Use

Noun

1805, in the meaning defined at sense 1

Verb

circa 1847, in the meaning defined at sense 1

Time Traveler
The first known use of outcrop was in 1805

Browse Nearby Words

Cite this Entry

“Outcrop.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/outcrop. Accessed 3 Jul. 2025.

Kids Definition

outcrop

1 of 2 noun
out·​crop ˈau̇t-ˌkräp How to pronounce outcrop (audio)
1
: a coming out of bedrock to the surface of the ground
2
: the part of a rock formation that appears at the surface of the ground

outcrop

2 of 2 verb
out·​crop ˈau̇t-ˌkräp How to pronounce outcrop (audio)
(ˈ)au̇t-ˈkräp
outcropped; outcropping
: to come to the surface : appear
granite outcropping through softer rocks

More from Merriam-Webster on outcrop

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