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pozzolana

[ pot-suh-lah-nuh; Italian pawt-tsaw-lah-nah ]

/ ˌpɒt səˈlɑ nə; Italian ˌpɔt tsɔˈlɑ nɑ /

noun

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

Also poz·zo·lan

[pot-suh-luh n] /ˈpɒt sə lən/, poz·zuo·la·na

[pot-swuh-lah-nuh; Italian pawt-tswaw-lah-nah] /ˌpɒt swəˈlɑ nə; Italian ˌpɔt tswɔˈlɑ nɑ/, puzzolan, puzzolana.

Origin of pozzolana

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

Words nearby pozzolana

poynting theorem, poynting-robertson effect, poza rica de hidalgo, poznań, pozsony, pozzolana, pozzolanic, pozzuolana, pozzuoli, pozzy, poços de caldas

Example sentences from the Web for pozzolana

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

Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 4 |Various
This shows the utter unfitness of the pozzolana beds in which the arenaria are excavated for the construction of the Catacombs.

The Catacombs of Rome |William Henry Withrow