Geological time

Pronunciation: /ˌdʒiəˈɫɑdʒɪkəɫ ˈtaɪm/

Geological time (noun)

  1. The very long period of time in which Earth formed and changed, measured in ages, eras, and periods.

Examples

  • Geological time shows how Earth changed over a long Earth history span.
  • Scientists study geological time to understand Earth history span events.