磷灰石 línhuīshí apatite, phosphatic limestone, agustite Origin Definitions Defs Strokes Stroke Words Sentences Sents 磷 lín noun phosphorus the nonmetallic chemical element with the symbol P; a solid element that exists in several forms such as white, red, and black phosphorus灰石 huīshí limestone Rock composed of calcium carbonate, identical in composition to marble