from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of a geologic period within the Cenozoic era; comprises the Paleocene, Eocene and Oligocene epochs from about 65 to 23 million years ago.
- proper n. The Paleogene period.
from The Century Dictionary and Cyclopedia
- n. In geology, a division of the Tertiary, suggested, but not generally adopted, which would embrace the Eocene and Oligocene, while that part of the Tertiary which is newer than Oligocene would be denominated Neogene.
Sorry, no etymologies found.