English dictionary
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English noun: epoch | |||
| 1. | epoch (time) a period marked by distinctive character or reckoned from a fixed point or event | ||
| Synonyms | era | ||
| Broader (hypernym) | period, period of time, time period | ||
| Narrower (hyponym) | age, day, historic period, modern era | ||
| Instance hyponym | Caliphate, Christian era, Common era | ||
| 2. | epoch (time) (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded | ||
| Synonyms | date of reference | ||
| Broader (hypernym) | date | ||
| Domain category | astronomy, uranology | ||
| 3. | epoch (time) a unit of geological time that is a subdivision of a period and is itself divided into ages | ||
| Broader (hypernym) | geologic time, geological time | ||
| Instance hyponym | Eocene, Eocene epoch, Glacial epoch, Holocene, Holocene epoch, Miocene, Miocene epoch, Oligocene, Oligocene epoch, Paleocene, Paleocene epoch, Pleistocene, Pleistocene epoch, Pliocene, Pliocene epoch, Recent, Recent epoch | ||
| Part meronym | geological period, period | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk