limestone
(noun) a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
Source: WordNet® 3.1
limestone (countable and uncountable, plural limestones)
An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO3); it occurs in a variety of forms, both crystalline and amorphous.
• lime
• calcium carbonate
• (mineralogy): bluestone, burrstone, calp, coquina, coral rag, chalk, malm, marble, travertine, tufa
limestone (not comparable)
Made of or with limestone.
• lemoniest, milestone
Source: Wiktionary
Lime"stone`, n.
Definition: A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 May 2025
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
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