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单词 limestone
释义

WordReference Random House Learner's Dictionary of American English © 2024
lime•stone /ˈlaɪmˌstoʊn/USA pronunciation   n. [uncountable]
  1. Geology, Rocksa rock made up mostly of calcium carbonate, some of which is formed from the skeletons of tiny sea organisms and coral.

WordReference Random House Unabridged Dictionary of American English © 2024
lime•stone  (līmstōn′),USA pronunciation n. 
  1. Geology, Rocksa sedimentary rock consisting predominantly of calcium carbonate, varieties of which are formed from the skeletons of marine microorganisms and coral: used as a building stone and in the manufacture of lime. Cf. marble. 
  • lime1 + stone 1515–25

Collins Concise English Dictionary © HarperCollins Publishers::
limestone /ˈlaɪmˌstəʊn/ n
  1. 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
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