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Definitions of epoch
  1. noun
    a period marked by distinctive character or reckoned from a fixed point or event

    Similar: 

    era
  2. noun
    (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded

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    type of:
  3. noun
    a unit of geological time that is a subdivision of a period and is itself divided into ages
Antonyms of epoch
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