English Reference
Noun

outcrop

n. countable
C1 Advanced UK /ˈaʊtkɹɒp/ out·crop UK spelling outcropped, outcrops Geology

n.a part of a rock formation that sticks out from the ground. You can see it because the soil or sand has worn away around it.

n.a portion of a rock formation that is exposed at the surface of the earth. Often used in geological contexts to describe a visible section of bedrock.


SIMPLE

The hikers climbed over a large outcrop of granite.

CONTEXTUAL

The geologist examined the sandstone outcrop to determine the age of the surrounding sedimentary layers.

COMPLEX

While the valley floor is covered in fertile soil, the steep cliffs reveal a massive outcrop of limestone that has resisted erosion for millions of years.

It eventually approached the point where the fjord meets Nares Strait and collided with a small rocky outcrop called Joe Island (Joe Ø).

ScienceDaily· 4 Sept 2026

They rely on food sources in the ocean, but nest on rocky outcrops all around the Antarctic continent .

The Conversation· 3 Sept 2026
This entry
Level C1 · Advanced
Frequency Occasional
Updated