outcrop UK /ˈaʊt.kɹɒp/US /ˈaʊt.kɹɑp/noun 3verb 1forms 3 noun3 •A coming out of bedrock or of an unconsolidated deposit to the surface of the ground. •The part of a rock formation that appears at the surface of the ground. •A piece of land that stands out (usually into water) from the land surrounding. verb1 •To come out to the surface of the ground. formsoutcropped · outcropping · outcrops