synonyms, antonyms, definitions, examples & translations of calcium in English

English Online Dictionary. What means calcium‎? What does calcium mean?

Coined by British chemist Humphry Davy in 1808, from Latin calx (lime, limestone) because it occurs in limestone.

  • (US) IPA(key): /ˈkælsi.əm/
  • (Philippines) IPA(key): /ˈkæl.ʃəm/

calcium (countable and uncountable, plural calciums)

  1. The chemical element (Symbol Ca), with an atomic number 20. It is a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as silicate in many rocks.
  2. (countable) An atom of this element.
  • chalk
  • lime
  • limestone
  • Calcium on the British Royal Society of Chemistry's online periodic table
  • Calcium in the Encyclopædia Britannica (11th edition, 1911)
  • kalcium


  1. calcium

Ultimately from English calcium. Coined by Humphry Davy.

  • IPA(key): /ˈkɑl.siˌʏm/
  • Hyphenation: cal‧ci‧um

calcium n (uncountable)

  1. calcium [from early 19th c.]
  • calciumoxide
  • calciumzout
  • kalk
  • IPA(key): /kal.sjɔm/

calcium m (uncountable)

  1. calcium
  • calcaire
  • calcifier
  • calcique
  • Lingala: kalisu
  • “calcium”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

calcium (uncountable)

  1. calcium
  • (Classical Latin) IPA(key): /ˈ, [ˈkäɫ̪kiʊ̃ˑ]
  • (modern Italianate Ecclesiastical) IPA(key): /ˈkal.t͡ʃ, [ˈkäl̠ʲt͡ʃium]

Form of calx.


  1. genitive plural of calx

Derived from calx, calcis (chalk) +‎ -ium (chemical element suffix).

calcium n (genitive calciī); second declension

  1. (New Latin) calcium

Second-declension noun (neuter).

  • Catalan: calci
  • French: calcium
  • Galician: calcio
  • Italian: calcio
  • Portuguese: cálcio
  • Romanian: calciu
  • Spanish: calcio

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This article based on an article on Wiktionary. The list of authors can be seen in the page history there. The original work has been modified. This article is distributed under the terms of this license.