adjective Petrology.

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

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
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Examples from the Web for porphyritic

Historical Examples of 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

porphyritic in Science



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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