Pĕr'mi-an, a.
a. (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. Dana.
a. (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. Dana.