Epoch - definition, pronunciation, transcription
- (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
- a unit of geological time that is a subdivision of a period and is itself divided into ages
The Civil War era was an epoch in 19th-century U.S. history.
The development of the steam engine marked an important epoch in the history of industry.
The king's death marked the end of an epoch.
the beginning of a new epoch
the zoology of the Pliocene epoch