calcium
See also: Calcium
English
| Chemical element | |
|---|---|
| Ca | Previous: potassium (K) |
| Next: scandium (Sc) | |
Etymology
A New Latin word derived by Sir Humphry Davy in 1808, from Latin calx (“lime, limestone”) because it occurs in limestone.[1]
Pronunciation
- (US) enPR: kăl′sē-əm, IPA(key): /ˈkælsi.əm/
Audio (US) (file)
Noun
calcium (countable and uncountable, plural calciums) (Symbol: Ca)
- A chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks.
- 2013 September-October, Katie L. Burke, “In the News”, in American Scientist:
- Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: […] . The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light. The critical component of the photosynthetic system is the “water-oxidizing complex”, made up of manganese atoms and a calcium atom.
- (countable) An atom of this element.
Derived terms
- calc-, calci-
- calcium sulfate, calcium sulphate
- calcium sulfide, calcium sulphide
- bismuth strontium calcium copper oxide
- calcic
- calcio-
- calcium-40
- calcium-42
- calcium-43
- calcium-44
- calcium-45
- calcium-46
- calcium-48
- calcium arsenate
- calcium carbide
- calcium carbonate
- calcium chloride
- calcium cyanamide
- calcium dihydrogen phosphate
- calcium fluoride
- calcium hydride
- calcium hydroxide
- calcium light
- calcium magnesium carbonate
- calcium magnesium silicate
- calcium nitrate
- calcium oxide
- calcium peroxide
- calcium phosphate
- calcium phosphide
- calcium platinate
- calcium tungstate
- dicalcium
- monocalcium
- oxycalcium
- tricalcium
Translations
chemical element of atomic number 20
|
|
References
- Chambers Dictionary of Etymology, Robert K. Barnhart (ed.), Chambers, 1988
Danish
Alternative forms
Noun
calcium
- calcium
Declension
Declension of calcium
| neuter gender |
Singular | |
|---|---|---|
| indefinite | definite | |
| nominative | calcium | calciummet |
| genitive | calciums | calciummets |
French
Pronunciation
- IPA(key): /kal.sjɔm/
Audio (file)
Descendants
- Lingala: kalisu
Further reading
- “calcium” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).
Interlingua
Latin
Pronunciation
- (Classical) IPA(key): /ˈkal.ki.um/, [ˈkaɫ.ki.ũ]
- (Ecclesiastical) IPA(key): /ˈkal.t͡ʃi.um/
Etymology 1
Form of calx.
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.