Webster’s Revised Unabridged Dictionary · 1913
Permian
Per′mi·an (pẽr′mĭ·an), a. [From the ancient kingdom of Permia, where the Permian formation exists.] (Geol.) Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. — n. The Permian period. See Chart of Geology.