{ 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.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.