Calcium

noun

/ˈkælsi.əm/

Word Frequency: 20.0

Definitions

1.nounThe 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.nounAn atom of this element.

Synonyms

ca atomic number 20 magnesium lime carbide zinc hypochlorite cyanamide pantothenate chalk limestone rock

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