| Library / English Dictionary |
CALCIUM CARBONATE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A salt found in nature as chalk or calcite or aragonite or limestone
Classified under:
Hypernyms ("calcium carbonate" is a kind of...):
carbonate (a salt or ester of carbonic acid (containing the anion CO3))
Hyponyms (each of the following is a kind of "calcium carbonate"):
dripstone (the form of calcium carbonate found in stalactites and stalagmites)
Holonyms ("calcium carbonate" is a substance of...):
chalk (a soft whitish calcite)
calcite (a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone)
Context examples:
Incorporating carbon in their biomass may help subsurface microbes form calcite, a mineral made of calcium carbonate.
(Major deep carbon sink linked to microbes at volcanic island chains, National Science Foundation)
Bone Formation Stimulation involves initiation of synthesis by osteoblasts of the hard connective tissue that constitutes the vertebrate skeleton and consists of a matrix of collagenous fibers impregnated chiefly with calcium phosphate and calcium carbonate.
(Bone Formation Stimulation, NCI Thesaurus)
Bone Formation Inhibition involves interference with, or restraint of, synthesis by osteoblasts of the hard connective tissue that constitutes the vertebrate skeleton and consists of a matrix of collagenous fibers impregnated chiefly with calcium phosphate and calcium carbonate.
(Bone Formation Inhibition, NCI Thesaurus)
Calcium carbonate is used therapeutically as a phosphate buffer in hemodialysis, as an antacid in gastric hyperacidity for temporary relief of indigestion and heartburn, and as a calcium supplement for preventing and treating osteoporosis.
(Calcium carbonate, NCI Thesaurus)
Bone Resorption Inhibition involves interference with, or restraint of, absorption and removal of the hard connective tissue that constitutes the vertebrate skeleton and consists of a matrix of collagenous fibers impregnated chiefly with calcium phosphate and calcium carbonate and release of bone salts (phosphorus and, especially, calcium) into the extracellular fluid by osteoclasts, activated by parathyroid hormone.
(Bone Resorption Inhibition, NCI Thesaurus)
Bone Resorption Stimulation involves initiation of absorption and removal of the hard connective tissue that constitutes the vertebrate skeleton and consists of a matrix of collagenous fibers impregnated chiefly with calcium phosphate and calcium carbonate and release of bone salts (phosphorus and, especially, calcium) into the extracellular fluid by osteoclasts, activated by parathyroid hormone.
(Bone Resorption Stimulation, NCI Thesaurus)
Crystalline calcium carbonate found in ocean sediments, usually derived from continental weathering of carbonate rock.
(Detrital carbonate, NOAA Paleoclimate Glossary)
The study used data from the Community Earth System Model (CESM) to forecast ocean acidification under several CO2 emission assumption scenarios, looking at changes in calcium carbonate saturation.
(Marine organisms in Southern Ocean will face shallower zone for life, National Science Foundation)
Scientists at Sainsbury Laboratory Cambridge University have found that the mineral vaterite, a form (polymorph) of calcium carbonate, is a dominant component of the protective silvery-white crust that forms on the leaves of a number of alpine plants, which are part of the Garden’s national collection of European Saxifraga species.
(Rare mineral discovered in plants for first time, University of Cambridge)
