exosphere

/EH0 K S OW0 S F IH0 R/

noun

1
The uppermost layer of a planet's atmosphere
2
An extremely thin atmosphere, as on Saturn's moon Dione
“"Scientists weren't even sure Dione would be big enough to hang on to an exosphere" ('Cassini Detects Hint of Fresh Air at Dione', Cassini Solstice Mission, JPL, Mar. 02, 2012)”

Translate “exosphere” into another language

Choose a language below to open the translator with English selected as the source language.