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| Chinese | English |
| 石灰 | lime Any of various mineral and industrial forms of calcium oxide differing chiefly in water content and percentage of constituent such as silica, alumina and iron (氧化钙的不同种类的无机的和工业的形式主要在水含量，以及结构成分如二氧化硅、氧化铝和铁的百分比例方面不同。) |
| 石灰石 | limestone A sedimentary rock consisting chiefly of calcium carbonate, primarily in the form of the mineral calcite and with or without magnesium carbonate. Limestones are formed by either organic or inorganic processes, and may be detrital, chemical, oolitic, earthy, crystalline, or recrystallized; many are highly fossiliferous and clearly represent ancient shell banks or coral reefs (主要由以方解石形式存在的碳酸钙组成的沉积岩，它含或不含碳酸镁。石灰石由有机或无机过程形成，可能是由岩屑、化学变化、鲕粒岩、泥土、结晶或重结晶形成的，有些是非常古老的化石，可以清楚地重现远古的贝壳或珊瑚礁。) |