| Library / English Dictionary |
LIMESTONE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
Classified under:
Hypernyms ("limestone" is a kind of...):
rock; stone (material consisting of the aggregate of minerals like those making up the Earth's crust)
sedimentary rock (rock formed from consolidated clay sediments)
Meronyms (substance of "limestone"):
atomic number 20; Ca; calcium (a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals)
atomic number 6; C; carbon (an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds)
calcite (a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone)
Hyponyms (each of the following is a kind of "limestone"):
rottenstone; tripoli (a weathered and decomposed siliceous limestone; in powdered form it is used in polishing)
