English Explanatory Dictionary

calcium

English dictionary entry

Meanings

noun
  1. The chemical element with atomic number 20: a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as silicate in many rocks.
  2. An atom of this element.

Pronunciation

/ˈkælsi.əm/ en-us-calcium.ogg /ˈkalʃɪəm/ /ˈkæl.ʃum/

Word forms

calcium calciums

Etymology

Etymology tree Latin calx Proto-Indo-European *-om Proto-Italic *-om Latin -umder. English -ium English calcium Coined by British chemist Humphry Davy in 1808, from Latin calx (“lime, limestone”) because it occurs in limestone. By surface analysis, calc- + -ium.

Related words

BSCCO calcia calcite calculus calx Ca²⁺ chalk lime limestone mul:Ca

Derived words

bismuth strontium calcium copper oxide calcaemia calc- calci- calcein calcemia calcic calcio- calcium-40 calcium-42 calcium-43 calcium-44 calcium-45 calcium-46 calcium-48 calcium acetate calcium arsenate calcium benzoate calcium bilirubinate calcium cannon calcium carbide calcium carbonate calcium channel blocker calcium chloride calcium chromate calcium copper tetrasilicate calcium cyanamide calcium diglutamate calcium dihydrogen phosphate calcium dioxide calcium disodium EDTA calcium ferrocyanide calcium fluoride calcium formate calcium fumarate calcium gluconate calcium guanylate calcium hydride calcium hydroxide calcium hypochlorite calcium inosinate calcium lactate calcium light calciumlike calcium magnesium carbonate calcium magnesium silicate calcium malate calcium montmorillonite calcium-montmorillonite calcium nitrate calcium nitride calcium oxalate calcium oxide calcium permanganate calcium peroxide calcium phosphate calcium phosphide calcium platinate calcium polyphosphate calcium propionate
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