noun. the atmospheric layer between the mesosphere and the exosphere.
- natural object
- -sphere (English)
- thermo- (English)
- θερμός (Ancient Greek (to 1453))
Example sentences of the word thermosphere
1. Existential there
Even though the thermosphere is extremely hot, its low density means that it cannot efficiently convey that energy to objects moving through it.
The thermosphere absorbs much of the radiation that Earth receives from the sun, leaving only a fraction to actually reach the surface.
3. Noun, singular or mass
Above the stratosphere is the mesosphere and the thermosphere, where it is hot and the air is thin.
It contains a number of layers, the most well known of which are the troposphere, stratosphere, mesosphere and thermosphere.