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Meaning of upper atmosphere
The upper atmosphere refers to the higher layers of the Earth's atmosphere, extending from about 12 kilometers above the Earth's surface to the edge of space.
Etymology of upper atmosphere
The term "upper atmosphere" is derived from the Latin words "atmosphaera," meaning "sphere of air" or "atmosphere," and the Old English word "upp," meaning "high" or "above."
The concept of the upper atmosphere has been studied since ancient times, but the term itself is a relatively modern development, dating back to the 19th century.
Synonyms
stratosphere
troposphere
mesosphere
thermosphere
exosphere
ionosphere
atmospheric layer
air layer
celestial sphere
empyrean
ether
heavens
sky
celestial realm
atmospheric region
air region
celestial expanse
upper air
upper layer
atmospheric zone
air zone
Definitions
- The upper atmosphere is the region of the atmosphere that lies above the troposphere, extending from about 12 kilometers to several hundred kilometers above the Earth's surface.
- * It is the layer of the atmosphere where the air is thinner and the pressure is lower than in the lower atmosphere.
Usage Examples
- The upper atmosphere plays a crucial role in protecting the Earth from harmful solar radiation.
- * The spacecraft was designed to study the upper atmosphere of the planet and gather data on its composition.
Antonyms
lower atmosphere
troposphere
lower air
lower layer
surface layer
ground level
sea level
low altitude
low elevation
lower zone
lower region