vapor pressure


Definition of vapor pressure

: the pressure exerted by a vapor that is in equilibrium with its solid or liquid form

called also vapor tension

Examples of vapor pressure in a Sentence

Recent Examples on the Web In addition, a phenomenon called vapor pressure deficit is increasing, which means that the warming atmosphere is wicking more water out of the snow, the land, trees, rivers, and streams. Jim Robbins, Wired, 25 June 2022 Previous research found that climate change is the main driver behind a sharp rise in vapor pressure deficit in the Western U.S. over the last several decades. Washington Post, 18 Feb. 2022 Fast-spreading wildfires become more likely as temperatures rise because a warmer atmosphere can draw more moisture from plants and soils, as measured by a metric called the vapor pressure deficit. Washington Post, 18 Feb. 2022 Rising summer and autumn temperatures, as well as increasing vapor pressure deficits and increasing precipitation whiplash in some parts of the West, have been repeatedly linked to climate change. Daniel Swain, Outside Online, 11 Jan. 2022 The vapor pressure deficit over a large area of the western U.S. that day was the highest value measured over the last 40 years, Fu said. Alex Wigglesworth, Los Angeles Times, 1 Nov. 2021 The vapor pressure deficit, a metric that indicates how intensely a fire can burn, is also at record high levels. Hayley Smith, Los Angeles Times, 16 Sep. 2021 Researchers derived historical estimates for Olympic wet-bulb globe temperatures (WBGT), using data for air temperature and vapor pressure and making assumptions for other factors, such as sunlight and wind. Andrew Mollica, WSJ, 5 Aug. 2021 Of interest in the ethanol blending discussion, gasoline must meet a specific requirement called the Reid vapor pressure (RVP). Robert Rapier, Forbes, 4 July 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vapor pressure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of vapor pressure

1865, in the meaning defined above

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Time Traveler for vapor pressure

Time Traveler

The first known use of vapor pressure was in 1865

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Dictionary Entries Near vapor pressure


vapor pressure

vapor-pressure thermometer

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Statistics for vapor pressure

Last Updated

2 Jul 2022

Cite this Entry

“Vapor pressure.” Dictionary, Merriam-Webster, Accessed 9 Aug. 2022.

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