释义 |
per·mi·an I. \ˈpərmēən\ adjective Usage: usually capitalized Etymology: Perm, region in eastern Russia (from Russian Perm') + English -ian : of or relating to the last major division of the Paleozoic marked by extensive glaciation in India, So. Africa, So. America, and Australia, by decline of the amphibians and increase of primitive reptiles, and by rocks consisting largely of red sandstone and shale — see geologic time table II. noun (-s) Usage: usually capitalized 1. : the Permian period or system of rocks 2. a. : permiak b. : the Finno-Ugric languages of the Permiaks, Votyaks, and Zyrians |