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portland cement

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portland cement

One entry found.

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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