pozzuolana Hear it!

pozzuolana definition

poz·zuo·lana (pät′swō lä′nə)

noun

  1. a volcanic rock, powdered and used in making a hydraulic cement
  2. a siliceous or siliceous-and-aluminous material that will, in finely divided form and in the presence of moisture, react with calcium hydroxide to form a cement
Also pozzolan poz′·zo·lan′ (pät′sə län′) or pozzolana poz′·zo·la′na (-lä′nə)

Etymology: It < L puteolana (pulvie), (powder of) Puteoli (now It Pozzuoli), site of the quarries

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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