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aerosol
[ air-uh-sawl, -sol ]
noun
- Physical Chemistry. a system of colloidal particles dispersed in a gas and commonly formed as smoke, fog, mist, haze, or smog:
a radioactive aerosol;
aerosols in the stratosphere.
- a liquid substance, as a disinfectant or deodorant, sealed in a metal container under pressure with an inert gas or other activating agent and released as a spray or foam through a push-button valve or nozzle:
an aerosol for cleaning ovens.
- Physiology, Pathology. a mist that lingers in the air, composed of fine particles (less than 5 micrometers in diameter) that form from the evaporation of respiratory droplets (5–10 micrometers in diameter) released into the air through talking, breathing, singing, whistling, coughing, sneezing, etc.:
Recommended precautions against virus-laden aerosols vary according to the type of virus.
adjective
- of or containing a liquid or gas under pressure for dispensing as a spray or foam:
a deodorant available in aerosol cans.
aerosol
/ ˈɛərəˌsɒl /
noun
- a colloidal dispersion of solid or liquid particles in a gas; smoke or fog
- a substance, such as a paint, polish, or insecticide, dispensed from a small metal container by a propellant under pressure
- Also calledair spray such a substance together with its container
aerosol
/ âr′ə-sôl′ /
- A substance consisting of very fine particles of a liquid or solid suspended in a gas. Mist, which consists of very fine droplets of water in air, is an aerosol.
- Compare emulsion
- A liquid substance, such as paint, an insecticide, or a hair spray, packaged under pressure for use or application as a fine spray.
Word History and Origins
Origin of aerosol1
Example Sentences
"The biggest warming is not in the Northern Hemisphere oceans but in the Southern Hemisphere oceans where aerosols certainly were not responsible for the warming."
Another prominent theory is a reduction in the number of small particles in the atmosphere, known as aerosols.
Song expressed confidence about the future of stratospheric aerosols, which he refers to as “sunscreen for Earth” or, more abstractly, “Ozempic for climate change.”
As condensation nuclei, aerosols play an essential part in cloud formation, while also reflecting sunlight themselves.
Many of these molecules can then cluster to form aerosol particles of just a few nanometers.
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