pozzolana

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

/ ˌpɒt səˈlɑ nə; Italian ˌpɔt tsɔˈlɑ nɑ /

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

puzzolana

[ poot-suh-lah-nuh; Italian poot-tsaw-lah-nah ]

/ ˌput səˈlɑ nə; Italian ˌput tsɔˈlɑ nɑ /

pozzolana.

Also puz·zo·lan

[poot-suh-luh n] /ˈput sə lən/.

puzzolana

/ (ˌpʊtsəˈlɑːnə) /

a variant of pozzuolana