of, pertaining to, containing, or resembling porphyry, its texture, or its structure.
- non·por·phy·rit·ic, adjective
- pseu·do·por·phy·rit·ic, adjective
- sub·por·phy·rit·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use porphyritic in a sentence
Dark grey porphyritic hornstone, approaching to compact felspar, with imbedded crystals of felspar.
porphyritic mountains, says M. Maury, imprint on the landscape a peculiarly picturesque character.The Desert World | Arthur Mangin
That is, the metamorphic rocks are characteristically holocrystalline, while igneous rocks are porphyritic, or cryptocrystalline.North America | Israel C. Russell
The lavas comprise dark pitchstone, resembling that at Kirk Yetholm, and porphyritic and amygdaloidal andesites and basalts.
But the bulk of the moraine is composed of porphyritic granite derived from Feldspar and Cathedral Valleys.The Yosemite | John Muir
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