peperine
Pep"e*rine, Pep`e*ri"no, n. Etym: [It. peperino, L. piper pepper. So called on account of its color.] (Geol.) Defn: A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc.
Pep"e*rine, Pep`e*ri"no, n. Etym: [It. peperino, L. piper pepper. So called on account of its color.] (Geol.) Defn: A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc.