stratosphere

noun

The region of the atmosphere above the troposphere and below the mesosphere.

noun

An extremely high or the highest point or degree on a ranked scale.

noun

Collectively, those layers of the Earth’s crust which primarily comprise stratified deposits.

noun

The region of the uppermost atmosphere where temperature increases along with the altitude due to the absorption of solar ultraviolet radiation by ozone. The stratosphere extends from the tropopause (10–15 kilometers) to approximately 50 kilometers, where it is succeeded by the mesosphere.

noun

the atmospheric layer between the troposphere and the mesosphere