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Vinony

water vapor

noun

  1. gaseous phase of water; unlike other forms of water, water vapor is invisible
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Wiktionary

noun

  1. Water in a gaseous state, especially when diffused in the atmosphere.

    “Water vapor was found in the atmosphere of K2-18b, one of hundreds of "super-Earths" - worlds ranging in size between Earth and Neptune - documented in a growing new field of astronomy devoted to the exploration of so-called exoplanets elsewhere in the Milky Way galaxy.”

  2. Water in a gaseous state, especially when diffused in the atmosphere.