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Great Oxygenation Event

Great Oxygenation Event proper noun: a period around 2.5 to 2.3 billion years ago when the atmosphere of the Earth and its shallow oceans saw a sustained increase in oxygen, caused by the widespread proliferation of photosynthetic cyanobacteria.

Proper noun

the Great Oxygenation Event

  1. (earth science) A period around 2.5 to 2.3 billion years ago when the atmosphere of the Earth and its shallow oceans saw a sustained increase in oxygen, caused by the widespread proliferation of photosynthetic cyanobacteria.

Synonyms of Great Oxygenation Event

Questions about Great Oxygenation Event

What does Great Oxygenation Event mean?
Great Oxygenation Event means a period around 2.5 to 2.3 billion years ago when the atmosphere of the Earth and its shallow oceans saw a sustained increase in oxygen, caused by the widespread proliferation of photosynthetic cyanobacteria.
What part of speech is Great Oxygenation Event?
Great Oxygenation Event is a proper noun.

Words near Great Oxygenation Event in the dictionary

  1. Great Osage
  2. Great Ouse
  3. great outdoors
  4. Great Oxendon
  5. Great Oxygenation
  6. Great Oxygenation Event
  7. Great Pacific Garbage Patch
  8. Great Patriotic War
  9. Great Paxton
  10. Great Peace of Montreal
  11. Great Plains

Source and license

Adapted from Wiktionary: Great Oxygenation Event (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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