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pozzuolana
/ ˌpɒtswəˈlɑːnə; ˌpɒtsəˈlɑːnə /
noun
- a type of porous volcanic ash used in making hydraulic cements
- any of various artificial substitutes for this ash used in cements
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Word History and Origins
Origin of pozzuolana1
C18: from Italian: of Pozzuoli
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Example Sentences
In 1775 he discovered in the Velay a rich deposit of pozzuolana, which in due course was worked by the government.
From Project Gutenberg
An artificial product which serves perfectly as a pozzuolana is granulated blast-furnace slag.
From Project Gutenberg
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