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pozzolan

(pŏtˌsə-länˈ) also poz·zo·la·na (-sə-läˈnə) or poz·zuo·la·na (-swə-)

noun
  1. A siliceous volcanic ash used to produce hydraulic cement.
  2. Any of various artificially produced substances resembling pozzuolana ash.

Related Forms:

  • pozˌzo·laˈnic adjective

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