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vapor

1 of 2

noun

va·​por ˈvā-pər How to pronounce vapor (audio)
1
: diffused matter (such as smoke or fog) suspended floating in the air and impairing its transparency
2
a
: a substance in the gaseous state as distinguished from the liquid or solid state
b
: a substance (such as gasoline, alcohol, mercury, or benzoin) vaporized for industrial, therapeutic, or military uses
also : a mixture (such as the explosive mixture in an internal combustion engine) of such a vapor with air
3
a
: something unsubstantial or transitory : phantasm
b
: a foolish or fanciful idea
4
vapors plural
a
archaic : exhalations of bodily organs (such as the stomach) held to affect the physical or mental condition
b
: a depressed or hysterical nervous condition

vapor

2 of 2

verb

vapored; vaporing ˈvā-p(ə-)riŋ How to pronounce vapor (audio)

intransitive verb

1
a
: to rise or pass off in vapor
b
: to emit vapor
2
: to indulge in bragging, blustering, or idle talk
vaporer noun

Did you know?

Speakers of the English language, mindful of the lightness and unsubstantiality of floating air and gas, have put several airy words to good use over the years to describe the act of talking idly or boastfully. The earliest such word is blow (as in "he kept blowing about his new job"), which drifted into English sometime about 1400. Vapor wafted into the language in the 1620s, and a little over 200 years later windbags, later also known as gasbags, not only blew and vapored but also gassed about anything they could.

Example Sentences

Verb a faded Southern belle tiresomely vaporing about all the handsome beaux she had in her long-ago youth
Recent Examples on the Web
Noun
Turning Point Brands sells vapor products, chewing tobacco, rolling papers, and cigar wraps, among others. Trefis Team, Forbes, 26 Aug. 2022 Use containers that are durable, easy to seal, resistant to cracking at low temperatures, and moisture- and vapor-resistant. Wini Moranville, Better Homes & Gardens, 23 Aug. 2022 Thermobaric munitions burst over their targets, spreading a fuel vapor before exploding and igniting the fuel—and creating a pressure wave that’s twice as powerful as that from a conventional artillery shell. David Axe, Forbes, 4 June 2022 The final step is a third distillation with a kosher turkey breast (usually this is suspended above so the vapor can pass through and pick up flavor) along with 40 seasonal fruits and regional spices. Jonah Flicker, Robb Report, 12 Aug. 2022 Once the temperature drops low enough, that vapor condenses into visible ice particles or water droplets, forming clouds. Anna Kaufman, USA TODAY, 17 July 2022 Firefighters sprayed water over the tank to dissipate the vapor until the leak was stopped. Megan Jones, Chicago Tribune, 3 June 2022 The fibers crisscross each other, forming tiny pores that allow air to escape directly (unlike membranes that allow only moisture vapor to pass through, like Gore-Tex). Outside Online, 27 May 2022 Normally the vapor takes around 2-3 years to dissipate, but the water from the Jan. 15 eruption could take 5-10 years to evaporate. Sarah Rumpf, Fox News, 4 Aug. 2022
Verb
Despite what ads tell you, no waterproof shell is completely breathable—blocking water requires some impediments to vapor transfer. Outside Online, 27 May 2022 The work had to be done quickly as water vanished to vapor in the early summer heat. Scott Wilson, Washington Post, 19 June 2021 Meanwhile, in a natural process called wicking, that moisture turns to vapor as it is continuously pulled outward from minuscule air spaces between the fibers of the felt, eventually evaporating entirely. Emma Wartzman, Bon Appétit, 5 Nov. 2020 In the fourth, Evers used his veto in an attempt to ensure a tax on vaping products would apply to any device containing fluid and to vapor fluid sold separately. Washington Post, 31 July 2019 In the fourth, Evers used his veto in an attempt to ensure a tax on vaping products would apply to any device containing fluid and to vapor fluid sold separately. Washington Post, 31 July 2019 But whole body cryotherapy exposes the body for a couple of minutes to vapor that has been supercooled to somewhere between minus 200 and minus 300 degrees Fahrenheit. Aaron E. Carroll, New York Times, 2 Jan. 2017 See More

Word History

Etymology

Noun

Middle English vapour, borrowed from Anglo-French & Latin; Anglo-French vapor, vapour, borrowed from Latin vapor, earlier vapōs "exhalation, steam, warmth," perhaps akin to Lithuanian kvãpas "smell, scent"

First Known Use

Noun

14th century, in the meaning defined at sense 1

Verb

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of vapor was in the 14th century

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