pozzolana
or pozzolan noun Etymology: Italian pozzolana Date: circa 1706 finely divided siliceous or siliceous and aluminous material that reacts chemically with slaked lime at ordinary temperature and in the presence of moisture to form a strong slow-hardening cement • pozzolanic adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Pozzolana — Pozzolana, also known as pozzolanic ash, is a fine, sandy volcanic ash, originally discovered and dug in Italy at Pozzuoli in the region around Vesuvius, but later at a number of other sites. Vitruvius speaks of four types of pozzolana: black,… …   Wikipedia

  • pozzolana — /pot seuh lah neuh/; It. /pawt tsaw lah nah/, n. a porous variety of volcanic tuff or ash used in making hydraulic cement. Also, pozzolan /pot seuh leuhn/, pozzuolana /pot sweuh lah neuh/; It. /pawt tswaw lah nah/, puzzolan, puzzolana. [1905 10;… …   Universalium

  • Pozzolana — Pozzuolana Poz zu*o*la na, Pozzolana Poz zo*la *na, n. [It.] Volcanic ashes from Pozzuoli, in Italy, used in the manufacture of a kind of mortar which hardens under water. [1913 Webster] …   The Collaborative International Dictionary of English

  • pozzolana — 1poz·zo·là·na s.f. TS mar. piccola imbarcazione usata nel Napoletano per la pesca con le nasse e i tramagli; anche agg.: barca pozzolana {{line}} {{/line}} DATA: 1937. ETIMO: der. del lat. Puteolanus, der. di Puteoli, nome di una località in… …   Dizionario italiano

  • pozzolana — noun A type of volcanic ash used for mortar or for cement which sets under water. See Also: pozzolan, pozzolanic …   Wiktionary

  • pozzolana — {{hw}}{{pozzolana}}{{/hw}}s. f.  (pl. pozzolane ) (geol.) Tufo recente, poco cementato, di colore grigio o rossastro, usato per far malte idrauliche …   Enciclopedia di italiano

  • pozzolana — pozzolana1 pl.f. pozzolane pozzolana2 pl.f. pozzolane …   Dizionario dei sinonimi e contrari

  • pozzolana — [ˌpɒtsə lα:nə] noun a type of volcanic ash used for mortar or for cement that sets under water. Origin C18: from Ital., from pozz(u)olana (earth) of Pozzuoli , a town near Naples …   English new terms dictionary

  • pozzolana — poz·zo·la·na …   English syllables

  • pozzolana — n. (also puzzolana) a volcanic ash used for mortar or hydraulic cement. Etymology: It., f. pozz(u)olano (adj.) of Pozzuoli near Naples …   Useful english dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”