Definition of exosphere in English:

exosphere

nounˈɛksə(ʊ)sfɪəˈɛksoʊˌsfɪr

Astronomy

The outermost region of a planet's atmosphere.
〔天文〕外大气圈，外逸层
Example sentencesExamples
- With around three hundred plus kilometers to go, we'll be in the exosphere, aka space, in no time at all.
- Then more indicators flashed to life as the ship skimmed the outer exosphere at Mach 27.
- Since collisions are negligible above the exobase, the molecules in this region, called the exosphere, move along ballistic trajectories under the action of the earth's gravitational field.
- The anti-grav lifted the shuttle up into the exosphere, and then, after obtaining permission from Perimeter Traffic Control, the engines kicked in.
- From the bottom of the exosphere the atmosphere has a thickness of 400 km.

Derivatives

exospheric

adjective

Astronomy

He did not know how much time that his fleet had before the exospheric trap's consequences manifested.
Example sentencesExamples
- He has evaluated the escape flux averaged over an entire 11-year cycle of solar activity, using satellite data on exospheric temperature.

Definition of exosphere in US English:

exosphere

nounˈɛksoʊˌsfɪrˈeksōˌsfir

Astronomy

The outermost region of a planet's atmosphere.
〔天文〕外大气圈，外逸层
Example sentencesExamples
- Then more indicators flashed to life as the ship skimmed the outer exosphere at Mach 27.
- Since collisions are negligible above the exobase, the molecules in this region, called the exosphere, move along ballistic trajectories under the action of the earth's gravitational field.
- The anti-grav lifted the shuttle up into the exosphere, and then, after obtaining permission from Perimeter Traffic Control, the engines kicked in.
- From the bottom of the exosphere the atmosphere has a thickness of 400 km.
- With around three hundred plus kilometers to go, we'll be in the exosphere, aka space, in no time at all.

单词	exosphere
释义	Definition of exosphere in English: exosphere nounˈɛksə(ʊ)sfɪəˈɛksoʊˌsfɪr Astronomy The outermost region of a planet's atmosphere. 〔天文〕外大气圈，外逸层 Example sentencesExamples With around three hundred plus kilometers to go, we'll be in the exosphere, aka space, in no time at all. Then more indicators flashed to life as the ship skimmed the outer exosphere at Mach 27. Since collisions are negligible above the exobase, the molecules in this region, called the exosphere, move along ballistic trajectories under the action of the earth's gravitational field. The anti-grav lifted the shuttle up into the exosphere, and then, after obtaining permission from Perimeter Traffic Control, the engines kicked in. From the bottom of the exosphere the atmosphere has a thickness of 400 km. Derivatives exospheric adjective Astronomy He did not know how much time that his fleet had before the exospheric trap's consequences manifested. Example sentencesExamples He has evaluated the escape flux averaged over an entire 11-year cycle of solar activity, using satellite data on exospheric temperature. Definition of exosphere in US English: exosphere nounˈɛksoʊˌsfɪrˈeksōˌsfir Astronomy The outermost region of a planet's atmosphere. 〔天文〕外大气圈，外逸层 Example sentencesExamples Then more indicators flashed to life as the ship skimmed the outer exosphere at Mach 27. Since collisions are negligible above the exobase, the molecules in this region, called the exosphere, move along ballistic trajectories under the action of the earth's gravitational field. The anti-grav lifted the shuttle up into the exosphere, and then, after obtaining permission from Perimeter Traffic Control, the engines kicked in. From the bottom of the exosphere the atmosphere has a thickness of 400 km. With around three hundred plus kilometers to go, we'll be in the exosphere, aka space, in no time at all.
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