Epoch

noun
'ɛpək

Noun

  • a period marked by distinctive character or reckoned from a fixed point or event

    Similar:Era
    Type of:Period

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

    Type of:Date

  • a unit of geological time that is a subdivision of a period and is itself divided into ages

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Similar Words

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