Science / Biology / Atmosphere: The envelope of gases that surrounds the Earth; consists largely of nitrogen (78%) and oxygen (21%).

Other Words for Atmosphere

Atmosphere Noun Synonyms: air, heaven(s), sky, aerosphere

Standard Atmosphere

Science / Weather / Standard Atmosphere: A standard atmosphere has been defined by the International Civil Aeronautical Organization (ICAO). It assumes a mean sea level temperature of 15°C a standard sea level pressure of 1,013.25 millibars MORE

Standard Air (Standard Atmosphere)

Technology / Aviation / Standard Air (Standard Atmosphere): An arbitrary atmosphere established for calibration of aircraft instruments. Standard Air Density is 29.92 inches of mercury and temperature of 59° F, equivalent to an atmospheric air pressure of 14. MORE

Atmosphere (Atm)

Science / Chemistry / Atmosphere (Atm): A unit of pressure, equal to a barometer reading of 760 mm Hg. 1 atmosphere is 101325 pascals and 1.01325 bar. MORE

Protective Atmosphere

Business / Machine Shop / Protective Atmosphere: A gas or vacuum envelope surrounding the workpieces, used to prevent or reduce the formation of oxides and other detrimental surface substances and to facilitate their removal. MORE

Atmosphere (Unit)

Science / Geology / Atmosphere (Unit): A unit of pressure equal to 101,325 newtons per square meter, or about 14.7 pounds per square inch. MORE


Science / Weather / Thermosphere: A thermal classification, it is the layer of the atmosphere located between the mesosphere and outer space. It is a region of steadily increasing temperature with altitude, and includes all of the exo MORE