- the scientific study of rocks, usually with the unaided eye or with little magnification
- loosely the structure and composition of a rock formation
Origin of lithologylitho- + -logy
- The gross physical character of a rock or rock formation.
- The microscopic study, description, and classification of rock.
- lith′o·log′ic lith′o·log′i·cal
litho- +"Ž -ology