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geological time vs epoch

epoch vs geological time

geological time and epoch both are nouns.

Word NounAdjectiveVerbAdverb
geological time Yes No No No
epoch Yes No No No
As nouns, epoch is a hyponym of geological time; that is, epoch is a word with a more specific, narrower meaning than geological time:
  • geological time: the time of the physical formation and development of the earth (especially prior to human history)
  • epoch: a unit of geological time that is a subdivision of a period and is itself divided into ages
Other hyponyms of geological time include aeon, eon, geological period, period, era, geological era.
geological time (noun) epoch (noun)
the time of the physical formation and development of the earth (especially prior to human history) a period marked by distinctive character or reckoned from a fixed point or event
a unit of geological time that is a subdivision of a period and is itself divided into ages
(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
Difference between geological time and epoch

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