Porphyry

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 319

pSr'fT-rf, n. (Min.) A rock consisting of a compact base, usually feldspathic, through which crystals of feldspar, etc., are di eminated. — Porphyrinic, a. Pert, to, like, or consisting of, por- Porpoise. phyry. See under Pork.