- Atmosphere is defined as the area of air and gas enveloping objects in space, like stars and planets, or the air around any location.
- An example of atmosphere is the ozone and other layers which make up the Earth’s sky as we see it.
- An example of atmosphere is the air and gases contained inside a greenhouse.
- The definition of atmosphere is an overall feeling and/or effect of a place, specially if it is an environment of pleasure or interest.
- An example of atmosphere is the creepy feeling one gets whenever they walk past the old, abandoned neighborhood house which is rumored to be haunted.
- An example of atmosphere is a romantic restaurant which has candlelight, soft music, bountiful flowers, and stunning art work.
The earth as seen from the region of the upper atmosphere and space known as aerospace.
- the gaseous envelope (air) surrounding the earth to a height of c. 1,000 km (c. 621 mi): it is c. 21% oxygen, 78% nitrogen, and 1% other gases, and rotates with the earth, because of gravity
- the gaseous mass surrounding any star, planet, etc.
- the air in any given place
- a pervading or surrounding influence or spirit; general mood or social environment
- the general tone of a work of art: a play with a fateful atmosphere
- Informal an interesting, often exotic, effect produced by decoration, furnishings, etc.: a restaurant with atmosphere
- Physics a standard unit of pressure used to measure atmospheric pressure, equal to the pressure exerted by a column of mercury that is 760 millimeters (29.9213 inches) high at 0°C at sea level (101,325 pascals or 1,013.25 millibars or 14.70 pounds per square inch): abbrev. atm
Origin of atmosphereModern Latin atmosphaera ; from Classical Greek atmos, vapor + sphaira, sphere
- The gaseous mass or envelope surrounding a celestial body, especially the one surrounding the earth, and retained by the celestial body's gravitational field.
- The air or climate in a specific place.
- Abbr. atm Physics A unit of pressure equal to the air pressure at sea level. It equals the amount of pressure that will support a column of mercury 760 millimeters high at 0 degrees Celsius under standard gravity, or 14.7 pounds per square inch (1.01325 × 105 pascals).
- A dominant intellectual or emotional environment or attitude: an atmosphere of distrust among the electorate.
- The dominant tone or mood of a work of art.
- An aesthetic quality or effect, especially a distinctive and pleasing one, associated with a particular place: a restaurant with an Old World atmosphere.
Origin of atmosphereNew Latin atmosphaera : Greek atmos, vapor; see wet-1 in Indo-European roots + Latin sphaera, sphere; see sphere.
atmosphere - Computer Definition
The mixture of gases that surrounds and is retained by the gravity of a celestial body such as the Earth.The atmosphere is denser near the Earths surface, and becomes gradually thinner until it fades away into space. Particularly near the Earths surface, the physical matter in the atmosphere attenuates electromagnetic signals due to absorption, refraction and other phenomena. At the outer limits of the atmosphere are four layers of the ionosphere, which is useful for skywave radio propagation. See also attenuation, ionosphere, propagation, refraction, and skywave.