岩石學 Save Sign in to save words Simplified: 岩石学 yánshíxué ㄧㄢˊ ㄕˊ ㄒㄩㄝˊ petrology lithology study of rocks Character by character 岩(yán)cliff 石(shí)surname Shi 學(xué)learn A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0