limestone
Concise Oxford English Dictionary © 2008 Oxford University Press:
limestone/ˈlʌɪmstəʊn/
▶noun a hard sedimentary rock composed mainly of calcium carbonate, used as building material and in cement.
'limestone' also found in these Oxford entries:
Bath stone
- calcareous
- calcium carbonate
- calx
- causey
- chalk
- clint
- clunch
- combe
- coquina
- Corallian
- cornbrash
- cornstone
- Culm
- down
- freestone
- grike
- karst
- lias
- marble
- olm
- oolite
- open-hearth process
- pavement
- periclase
- Portland stone
- Purbeck marble
- quicklime
- rottenstone
- sinkhole
- skarn
- turlough

