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
WordReference Random House Learner's Dictionary of American English © 2025
lime•stone /ˈlaɪmˌstoʊn/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2025- Geology, Rocksa rock made up mostly of calcium carbonate, some of which is formed from the skeletons of tiny sea organisms and coral.
lime•stone
(līm′stōn′),USA pronunciation n.
- 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' also found in these entries (note: many are not synonyms or translations):
Burren
- Caen stone
- Carlsbad Caverns
- Cheddar
- Dolomites
- Gibraltar
- Guadalupe Mountains National Park
- Lias
- Mammoth Cave National Park
- Mendips
- Mexican free-tailed bat
- Natural Bridge
- Niah Cave
- Peak District
- Portland
- Portland cement
- Purbeck marble
- Solvay process
- Willendorf
- Wookey Hole
- asphalt rock
- calc
- calci-
- calcite
- calcium
- calcium carbide
- calcium carbonate
- cap rock
- carbon dioxide
- causeway
- causey
- cave
- cement
- cenote
- chalk
- chalkstone
- channery
- coral reef
- coralline
- dedolomitize
- dolomite
- dolomitization
- dolomitize
- freestone
- fret
- hedenbergite
- karst
- kiln
- lime
- lime burner