Porphyry meaning

pôrfə-rē
Frequency:
Rock containing relatively large conspicuous crystals, especially feldspar, in a fine-grained igneous matrix.
noun
0
0
A type of rock quarried in ancient times in Egypt, with large feldspar crystals contained in a purplish groundmass.
noun
0
0
An igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix.
0
0
(geology) A hard igneous rock consisting of large crystals in a fine-grained matrix.
  • A purple-red rock of this kind.
noun
0
0
Any igneous rock with large, distinct crystals, esp. of alkali feldspar, embedded in a fine-grained matrix.
noun
0
1
Advertisement

Origin of porphyry

  • Middle English porphiri, porfurie from Old French porfire from Italian porfiro from Medieval Latin porphyrium from Latin porphyrītēs from Greek porphurītēs from porphurā shellfish yielding purple dye, purple (from its color)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek πορφυρίτες λίθος ("purple stone").

    From Wiktionary