n. a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
词态变化
原型:limestone
变形:s
常见例句
1
A extinct genus of Branchiopoda, very common in Silurian limestones.
2
A peculiar structure found in the Archaean limestones of Canada and other regions
3
a name given in England and Europe to a series of marine limestones underlying the Oolite
4
A cement having the color of the Portland stone of England, made by calcining an artificial mixture of carbonate of lime and clay, or sometimes certain natural limestones or chalky clays
