Main Entry: por·phy·rit·ic

Pronunciation: \ˌpȯr-fə-ˈri-tik\

Function: adjective

Etymology: Middle English porphiritike, from Medieval Latin porphyriticus, from Greek porphyritikos, from porphyritēs (lithos) porphyry

Date: 15th century

1 : of or relating to porphyry
2 : having distinct crystals (as of feldspar) in a relatively fine-grained base