泥质 nízhì muddy Origin Definitions Defs Strokes Stroke Words Sentences Sents 泥质岩 nízhìyán mudstone mudstone or pelite, which is a type of fine-grained sedimentary rock consisting primarily of clay or mud泥质页岩 nízhìyèyán argillaceous shale a type of shale with a high clay content, characterized by its ability to split into thin layers (fissility)