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exo-ocean. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
From exo- + ocean.
Noun
exo-ocean (plural exo-oceans)
- An ocean on a planet other than Earth.
2010 November 20, Steve Nerlich, Universe Today:From there, if the planet is big enough to gravitationally retain a thick atmosphere and is in the temperature zone where water can remain fluid, then you’ve got yourself an exo-ocean.
2018 May 21, Tim Folger, “Our Aquatic Universe”, in Aeon:Before that day arrives, we might well find evidence of life in some of the exo-oceans much closer to home.