adjective Petrology.

of, pertaining to, containing, or resembling porphyry, its texture, or its structure.

Nearby words

  1. porphyria cutanea tarda,
  2. porphyrin,
  3. porphyrinogen,
  4. porphyrinuria,
  5. porphyrite,
  6. porphyrization,
  7. porphyrize,
  8. porphyroblast,
  9. porphyrogenite,
  10. porphyroid

Origin of porphyritic

1375–1425; late Middle English porphiritike < Medieval Latin porphyrīticus < Greek porphyrītikós of porphyry; see -ic

Related formsnon·por·phy·rit·ic, adjectivepseu·do·por·phy·rit·ic, adjectivesub·por·phy·rit·ic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for porphyritic

British Dictionary definitions for porphyritic



(of rocks) having large crystals in a fine groundmass of minerals
consisting of porphyry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for porphyritic



An igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix.
Related formsporphyritic adjective (pôr′fə-rĭtĭk)

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