Permian
Permian definition
Per·mian (pʉr′mē ən)
adjective
designating or of the sixth and last geologic period of the Paleozoic Era, characterized by the formation of Pangea, glaciation in the Southern Hemisphere, development of mountains, esp. in the Appalachians, and an increase in the diversity of land plants and animals
Etymology: after the city of Perm
Permian Idioms
the Permian
the Permian Period or its rocks
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
Comments
Improve this definition.
Share on Facebook