- Geology.
- a cropping out, as of a stratum or vein at the surface of the earth.
- 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.
- to crop out, as strata.
- part of a rock formation or mineral vein that appears at the surface of the earth
- an emergence; appearance
- (of rock strata, mineral veins, etc) to protrude through the surface of the earth
- another word for crop out