IPA: /ˈaʊtˌkrɒpɪŋ/
KK: /aʊtˈkrɑpɪŋ/
A part of rock or soil that appears above the surface of the ground.
The outcropping of granite was visible along the hiking trail.
Outcropping is formed from "out-" (meaning outside or outward) and "crop" (from Old English "croppian", meaning to grow or to produce). The word describes a geological feature where rock or mineral formations are visible on the surface, essentially growing or protruding outward from the ground.
Think of something that is 'growing outward' ('out-') from the earth, like rocks or minerals that are visible on the surface.