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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.


Etymology

Origin of pozzolana

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

According to modern physicians it is impossible to live many days in the caves of pozzolana in which many of the catacombs are excavated.”

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

The tufa lithoide and the pozzolana were thus alone used for building purposes by the Romans, and the catacombs are never found excavated in these.

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

Its chief ingredient was pozzolana, a sand found in great abundance near Rome and other sites.

From Early European History by Hutton Webster

A cement which hardens under water; used for piers, docks, &c., as pozzolana, Aberthaw limestone, &c.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Sir Edward Belcher

Not only the walls but the vaults were built in this pozzolana concrete, and formed one solid mass.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 4 "Aram, Eugene" to "Arcueil" by Various

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