atmosphere

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atmosphere

 [at´mos-fēr]
1. the entire gaseous envelope surrounding the earth and subject to the earth's gravitational field.
2. the air or climate in a particular place. adj., atmospher´ic.
3. a unit of pressure, being that exerted by the earth's atmosphere at sea level; equal to 1.01325 × 105pascals (approximately 760 mm Hg). Abbreviated atm.

at·mos·phere

(at'mŏs-fēr),
1. Any gas surrounding a given body; a gaseous medium.
See also: standard atmosphere, torr.
2. A unit of air pressure equal to 101.325 kPa.
See also: standard atmosphere, torr.
[atmo- + G. sphaira, sphere]

atmosphere

/at·mos·phere/ (at´mos-fēr)
1. the entire gaseous envelope surrounding the earth and subject to the earth's gravitational field.
2. the air or climate in a particular place.
3. a unit of pressure, being that exerted by the earth's atmosphere at sea level; equal to 1.01325 × 105pascals (approximately 760 mm Hg). Abbreviated atm.

atmosphere (atm)

[at′məsfir]
Etymology: Gk. atmos, vapor, sphaira, sphere
1 the natural body of air covers the surface of the earth. It is composed of approximately 20% oxygen, 78% nitrogen, and 1% argon and other gases, including small amounts of carbon dioxide hydrogen, and ozone as well as traces of helium, krypton, neon, and xenon and varying amounts of water vapor.
2 an envelope of gas, which may or may not duplicate the natural atmosphere in chemical components.
3 a unit of gas pressure that is usually defined as being equivalent to the average pressure of the earth's atmosphere at sea level, or about 14.7 pounds per square inch or 760 mm Hg. atmospheric, adj.

at·mos·phere

(at'mŏs-fēr)
1. Any gas surrounding a given body; a gaseous medium.
2. A unit of air pressure equal to 101.325 kPa.
See also: standard atmosphere
[atmo- + G. sphaira, sphere]

atmosphere

the gaseous envelope surrounding a particular body such as the earth, or the gaseous content of a given structure or container.

Atmosphere

A measurement of pressure. One atmosphere equals the pressure of air at sea level (14.7 pounds per square inch [psi]).

atmosphere (atm),

n the natural body of air, composed of approximately 20% oxygen, 78% nitrogen, and 2% carbon dioxide and other gases.
References in periodicals archive ?
Treatment of petroleum-contaminated soils using iron mineral catalyzed hydrogen peroxide, Chemosphere 37: 1473-1482.
Persulfate oxidation of trichloroethylene with and without iron activation in porous media, Chemosphere 70: 426-435.
2003, "Equilibrium studies for the sorption of lead from effluents using chitosan," Chemosphere, 52, pp.
2005, "Lead removal in fixed-bed columns by zeolite and sepiolite," Chemosphere, 52, pp.
Chemosphere 76(6):774-783, PMID: 19481778, https://doi.
Chemosphere 73(2):148-154, PMID: 18466951, https://doi.
Chemosphere 84:1238-1243, PMID: 21652055, https://doi.
Chemosphere 78:347-352, PMID: 20006371, https://doi.
A global perspective on the use, sales, exposure pathways, occurrence, fate and effects of veterinary antibiotics (VAs) in the environment," Chemosphere, 65: 725-759.
and his colleagues suggest that PBDEs may disrupt some of the same communication processes, reports McDonald in an upcoming issue of CHEMOSPHERE.
mechanism and kinetic model for the decolorization of the azo dye Reactive Black 5 by hydrogen peroxide and UV radiation, chemosphere, 52: 1069-1077.
Moreover, the number of petentially toxic chemicals formed by pulp bleaching complicates assessments of whether any need exists to limit them, note Donald Mackay and his University of Toronto colleagues in the July 1988 CHEMOSPHERE.