Definition of water vapor
: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)
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Recent Examples of water vapor from the Web
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There’s some research that indicates that warming oceans are going to release more water vapor into the air, which produces instability, which is what tornadoes feed on.
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Many of these puny objects, identified by the water vapor condensing in their cool atmospheres, are brown dwarfs—failed stars that never collected enough material to ignite nuclear fusion in their cores.
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Made visible by clouds, these ribbons of water vapor known as atmospheric rivers extend thousands of miles from the tropics to the western U.S. This one originates near Hawaii, thus it's nicknamed the Pineapple Express.
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As the surface air temperatures rise, the atmosphere will be able to hold more water vapor.
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Hydrophilic membranes trap water vapor from air that’s blown across them by a solar-powered fan.
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That causes water vapor in the air to condense and form clouds.
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Atmospheric rivers are long, narrow channels in that transport water vapors outside of the tropics.
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The Pineapple Express is just one of these atmospheric rivers that forms occasionally and carries water vapor northeast, from the area around Hawaii up to California.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'water vapor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of water vapor
15th century
Medical Dictionary
water vapor
medical Definition of water vapor
: water in a vaporous form especially when below boiling temperature and diffused (as in the atmosphere)
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