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portland cement

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portland cement

Main Entry:: port·land cement
Pronunciation:: \ˈpȯrt-lən(d)-\
Function:: noun
Etymology:: Isle of Portland, England; from its resemblance to a limestone found there
Date:: 1824

: a hydraulic cement made by finely pulverizing the clinker produced by calcining to incipient fusion a mixture of clay and limestone or similar materials

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