Avernian

Meaning

1. Of or pertaining to Avernus, a lake of Campania, in Italy, famous for its poisonous vapors, which ancient writers fancied were so malignant as to kill birds flying over it. It was represented by the poets to be connected with the infernal regions.
2. A European land mammal age from 29.2 to 23.03 million years ago, a subdivision of the Oligocene.

Sources

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