Dictionary
poz•zo•la•na
Pronunciation: (pot"su-lä'nu; It.pôt"tsô-lä'nä), [key]—
n.
a porous variety of volcanic tuff or ash used in making hydraulic cement.
Also,poz•zo•lanPronunciation: (pot'su-lun), [key] poz•zuo•la•na Pronunciation: (pot"swu-lä'nu; It.pôt"tswô-lä'nä), [key] puzzolan, puzzolana. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.