<p><strong>Adjective:</strong></p><ul><li>Geology: Noting or pertaining to a period of the Paleozoic Era occurring from about 280 to 230 million years ago and characterized by a profusion of amphibian species.</li></ul><p><strong>Noun:</strong></p><ul><li>Geology: The Permian Period or System.</li><li>Permic.</li></ul>