Pozzolana
//ˌpɒts(w)əˈlɑːnə// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A type of volcanic ash used for mortar or for cement which sets under water. countable, uncountable
"Finally the street is strewn with pozzolana to prevent the horses from slipping on the smooth paving."
Example
More examples"Finally the street is strewn with pozzolana to prevent the horses from slipping on the smooth paving."
Etymology
Borrowed from Italian pozz(u)olana, earth of Pozzuoli, a town near Naples, itself from Latin Puteoli, ultimately from the verb puteō (“stink”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.