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Meaning of exosphere

Source language: EnglishDictionary language: English

exosphere

noun

Definitions

  1. The uppermost layer of a planet's atmosphere

  2. An extremely thin atmosphere, as on Saturn's moon Dione

    Example: "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)

Sources:https://en.wiktionary.org/wiki/exosphere

Related words

homosphereionosphereozonospherecrusttroposphereexopausethermopauseionopause