1. [ noun ] a period marked by distinctive character or reckoned from a fixed point or event
Synonyms: era
Related terms: time_period day age historic_period modern_era caliphate Christian_Era
2. [ noun ] (astronomy) the precise date that is the point of reference for which information (as coordinates of a celestial body) is referred
Synonyms: date_of_reference
Related terms: date astronomy
3. [ noun ] (geology) a unit of geological time
Related terms: geological_time Holocene Pliocene Miocene Oligocene Eocene Pleistocene Paleocene period
Similar spelling:   epic