(definition) by Webster 1913 Wed Dec 22 1999 at 1:53:58

Pep"e*rine (?), Pep`e*ri"no (?), n. [It. peperino, L. piper pepper. So called on account of its color.] Geol.

A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc.

 

© Webster 1913.

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