dicalcium silicate

noun
di·​cal·​ci·​um silicate | \(ˌ)dī-ˈkal-sē-əm- \

Definition of dicalcium silicate 

: a calcium silicate 2CaO·SiO2 that is an essential ingredient of portland cement

First Known Use of dicalcium silicate

1925, in the meaning defined above

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The first known use of dicalcium silicate was in 1925

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