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

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 About, Edmond

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

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

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

There are sulphur and manganese mines in the island of Melos, and the volcanic island of Santorin produces pozzolana, a kind of cement, which is exported in considerable quantities.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 4 "Grasshopper" to "Greek Language" by Various