泥質岩 Save Sign in to save words Simplified: 泥质岩 nízhìyán ㄋㄧˊ ㄓˋ ㄧㄢˊ mudstone (geology) Character by character 泥(ní)mud 質(zhì)character 岩(yán)cliff A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0