noun
- an extremely long period of time
- a unit of geological time equal to one billion years
Usage: geology
Examples
- It seemed like aeons since she had last seen her childhood home.
- The formation of mountains takes place over geological aeons.
- Philosophers have pondered these questions for aeons.
- The star will continue burning for aeons to come.
- Scientists study rock layers formed aeons ago.
- Waiting for the results felt like an aeon.