mesosphere
mesosphere
Noun
This term describes a specific atmospheric region defined by its thermal properties and altitude. It is characterized by the coldest temperatures in the Earth's atmosphere, creating a stark contrast to the warming trends seen in the stratosphere below it. As a scientific term for a unique planetary layer, it is treated as an uncountable noun. It does not typically take a plural form because it refers to a single, global atmospheric shell rather than multiple distinct entities.
Meanings
Nounmesosphere
The layer of the Earth's atmosphere located above the stratosphere and below the thermosphere, characterized by a decrease in temperature with increasing altitude.
"The mesosphere is the region where most meteors burn up upon entry into the atmosphere."