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vapor
[ vey-per ]
noun
- a visible exhalation, such as fog, mist, steam, smoke, or noxious gas, diffused through or suspended in the air:
The vapors rising from the bogs smelled muddy.
- Physics. a gas at a temperature below its critical temperature.
- a substance converted into a gaseous state for technical or medicinal uses.
- a combination of gaseous particles of a substance and air.
- vapors, Archaic.
- harmful exhalations formerly supposed to be produced within the body, especially in the stomach.
- mental or physical illness, such as depression or hypochondria, formerly supposed to result from such exhalations, especially in women.
- the vapors. Often Facetious. a feeling of being overwhelmed with strong emotion:
That guy gives the press the vapors every time he announces a new project.
- Archaic.
- a strange, senseless, or fantastic notion.
- something insubstantial or transitory.
verb (used with object)
- to cause to rise or pass off in, or as if in, vapor; vaporize.
- Archaic. to affect with the vapors; depress.
verb (used without object)
- to rise or pass off in the form of vapor.
- to emit vapor or exhalations.
- to talk or act grandiloquently, pompously, or boastfully; bluster.
vapor
/ ˈveɪpə /
noun
- the US spelling of vapour
vapor
/ vā′pər /
- The gaseous state of a substance that is normally liquid or solid at room temperature, such as water that has evaporated into the air.
- See more at vapor pressureSee also water vapor
- A faintly visible suspension of fine particles of matter in the air, as mist, fumes, or smoke.
- A mixture of fine droplets of a substance and air, as the fuel mixture of an internal-combustion engine.
Other Words From
- va·por·a·ble adjective
- va·por·a·bil·i·ty [vey-per-, uh, -, bil, -i-tee], noun
- va·por·er noun
- va·por·less adjective
- va·por·like adjective
Word History and Origins
Origin of vapor1
Usage
Example Sentences
Once this extra water vapor is in the atmosphere, there is an increased potential for extreme precipitation.
Carbon dioxide is one of the chief anthropogenic greenhouse gases that contributes to climate change; the others are methane, water vapor, nitrous oxide and fluorinated gases.
These particles, in turn, grow over time and then serve as condensation nuclei for water vapor -- they thus play an important role in cloud formation in the tropics.
La Niña seasons typically produce large numbers of atmospheric rivers, or narrow bands of concentrated water vapor in the sky that act like rivers in the sky.
The researchers examined the thermal performance of a TCM reactor powered by strontium chloride, which gives off heat as it reacts with water vapor in the air.
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