secondary atmosphere — An Etymological Dictionary of Astronomy and Astrophysics

secondary atmosphere

جوّ ِ دومان، هواسپهر ِ ~

javv-e dovomân, havâsepehr-e ~

Fr.: atmosphère secondaire

An atmosphere of a planet that forms after primordial gases had been
lost or had failed to accumulate. A secondary atmosphere develops from internal volcanic outgassing, or by accumulation of material from
comet impacts. It is characteristic of terrestrial planets, such as Earth, Mercury, Venus, and Mars. → primordial atmosphere.

See also: → secondary; → atmosphere.

An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک