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limestone
/ ˈɪˌəʊ /
noun
- a sedimentary rock consisting mainly of calcium carbonate, deposited as the calcareous remains of marine animals or chemically precipitated from the sea: used as a building stone and in the manufacture of cement, lime, etc
limestone
- A sedimentary rock consisting primarily of calcium carbonate, often in the form of the minerals calcite or aragonite, and sometimes with magnesium carbonate in the form of dolomite. Minor amounts of silica, feldspar, pyrite, and clay may also be present. Limestone can occur in many colors but is usually white, gray, or black. It forms either through the accumulation and compaction of fossil shells or other calcium-carbonate based marine organisms, such as coral, or through the chemical precipitation of calcium carbonate out of sea water.
limestone
- Sedimentary rock formed primarily of calcium carbonate, often the skeletons of small marine organisms.
Word History and Origins
Origin of limestone1
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Example Sentences
During work in the front garden, he dug limestone rocks out of the ground after they had become exposed.
So far researchers have found 39 adult skeletons lying in graves carved out of the thick limestone bedrock.
The limestone walls of the crypts and atmosphere within them is believed to have helped preserve the remains.
Little by little, limestone is deposited on the steel poles and at their base, creating an ideal habitat for corals and other shellfish and marine animals.
He paused alongside the wall, the rust-colored soil at his feet spreading for miles around, his view bracketed by the San Jose Mountains to the south and a majestic limestone bluff to the north.
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