|
|
Per·mi·an
 Permian
|
|
- pronunciation:
- puhr
mi
 n
- parts of speech:
- adjective, noun
| part of speech: |
adjective |
| definition: |
of, relating to, or designating the last geological period of the Paleozoic Era, from approximately 280 million to 220 million years ago, when reptiles became prominent, major mountain ranges such as the Appalachians formed, and great glaciers appeared in the Southern Hemisphere.
|
|
|
| part of speech: |
noun |
| definition: |
the Permian Period, or the rock formations that date from that time.
|
|
|