Dictionary

exosphere

noun exo·sphere \ˈek-sō-ˌsfir\

Definition of EXOSPHERE

:  the outer fringe region of the atmosphere of the earth or a celestial body (as a planet)
exo·spher·ic \ˌek-sō-ˈsfir-ik, -ˈsfer-\ adjective
ADVERTISEMENT

Origin of EXOSPHERE

International Scientific Vocabulary
First Known Use: 1949
EXOSPHERE Defined for Kids

exosphere

noun exo·sphere \ˈek-sō-ˌsfir\

Definition of EXOSPHERE for Kids

:  the outermost region of the atmosphere

Browse

Next Word in the Dictionary: exosporalPrevious Word in the Dictionary: exoskeletonAll Words Near: exosphere
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears