| Porphyritic (a.) Relating to, or resembling, porphyry, that is, characterized by the presence of distinct crystals, as of feldspar, quartz, or augite, in a relatively fine-grained base, often aphanitic or cryptocrystalline. Thesaurus Entries asperous, corrugated, cragged, crinkled, crumpled, crystal, crystalline, gravelly, gritty, harsh, ironbound, jagged, jaggy, lapideous, lithoid, lithoidal, monolithic, pebbled, pebbly, porphyritic, ragged, rock-ribbed, rock-strewn, rock-studded, rockbound, rocklike, rocky, rugged, rugose, rugous, sandy, saw-toothed, sawtooth, scabrous, scragged, scraggly, scraggy, serrate, serrated, shingled, shingly, snagged, snaggled, snaggy, stonelike, stony, trachytic, uneven, unlevel, unsmooth, wrinkled |