Found 2 items, similar to petrology.
English → English (WordNet) Definition: petrology petrology n : the branch of geology that studies rocks: their origin and formation and composition
English → English (gcide) Definition: Petrology Petrology \Pe*trol"o*gy\, n. [Petro + -logy.] 1. The department of science which is concerned with the mineralogical and chemical composition of rocks, and with their classification: lithology. [1913 Webster] 2. A treatise on petrology. [1913 Webster]