| ̷ ̷ ̷ ̷|rid.ik adjective
Etymology: Medieval Latin porphyriticus, from Greek porphyritikos, from porphyritēs ( lithos ) porphyry + -ikos -ic
1. : of or relating to porphyry
a porphyritic column
2. : having distinct crystals (as of feldspar, quartz, or augite) in a relatively fine-grained base that is often aphanitic, cryptocrystalline, or glassy — compare groundmass , phenocryst
• por·phy·rit·i·cal·ly -d.ə̇k(ə)lē adverb