pozzolana

American  

[pot-suh-lah-nuh, pawt-tsaw-lah-nah] / ˌpɒt səˈlɑ nə, ˌpɔt tsɔˈlɑ nɑ /

Italian pozzolan

noun

1. a porous variety of volcanic tuff or ash used in making hydraulic cement.

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Etymology

Origin of pozzolana

1905–10; < Italian < Latin puteolāna, feminine of puteolānus of Pozzuoli (< Latin Puteolī literally, little springs); see -an

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Example Sentences

See Examples For:

pozzolana

The quarries contain building materials, such as marble and pozzolana, which is Roman cement almost ready-made.

From The Roman Question by Edmond About

But its peculiar interest is, that it affords at one point a marked example of the connection of an arenarium, or pit from which pozzolana was extracted, with the streets of the cemetery itself.

From The Atlantic Monthly, Volume 01, No. 07, May, 1858 by Various

With equal care these subterranean engineers avoided the layers of pozzolana, which would have rendered their work insecure, and in which no permanent rock tomb could have been constructed.

From Museum of Antiquity A Description of Ancient Life by T. L. (Thomas Louis) Haines

In 1880-82 a third and deeper network of galleries was excavated for the sake of extracting the pozzolana, the beds of which support the tufa and the catacombs excavated in it.

From Pagan and Christian Rome by Rodolfo Amedeo Lanciani

The pozzolana is the material required for building purposes, for admixture with mortar; and the sandpits are naturally excavated in the stratum which supplies it.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5 "Cat" to "Celt" by Various

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