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Precambrian

From Wiktionary, the free dictionary
See also: Pre-Cambrian

English

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Alternative forms

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Etymology

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From pre- +‎ Cambrian.

Pronunciation

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  • Audio (US):(file)

Adjective

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English Wikipedia has an article on:
Wikipedia

Precambrian (not comparable)

  1. (informal, geology) Relating to the time and geology dated before the Phanerozoic
    • 1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page 209:
      When you look at a Precambrian trilobite in the lobby of a New York bank, it is difficult to speculate about its primeval environment.

Translations

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Proper noun

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Precambrian

  1. (geology) The Precambrian supereon; spanning from the formation of the Earth around 4.6 billion years ago to the emergence of hard-shelled creatures 541 million years ago.

Usage notes

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  • The International Commission on Stratigraphy, which attempts to standardize the vocabulary of the field, is revising the boundaries between time periods based on physical-science methods rather than the kinds of fossils present.
  • The boundary between the Precambrian and the Phanerozoic has been changed from time to time and will be subject to change, as will the eons listed as Hyponyms below.

Synonyms

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Antonyms

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Hyponyms

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Coordinate terms

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Translations

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