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  1. epoch

    • IPA[ˈepək]

    美式

    • n.
      a period of time in history or a person's life, typically one marked by notable events or particular characteristics;the beginning of a distinctive period in the history of someone or something
    • noun: epoch, plural noun: epochs

    • 釋義

    名詞

    • 1. a period of time in history or a person's life, typically one marked by notable events or particular characteristics the Victorian epoch
    • the beginning of a distinctive period in the history of someone or something welfare reform was an epoch in the history of U.S. social policy
    • a division of time that is a subdivision of a period and is itself subdivided into ages, corresponding to a series in chronostratigraphy the Pliocene epoch
    • an arbitrarily fixed date relative to which planetary or stellar measurements are expressed.