IONOSPHERE


Meaning of IONOSPHERE in English

i ‧ on ‧ o ‧ sphere /aɪˈɒnəsfɪə $ aɪˈɑːnəsfɪr/ BrE AmE noun

[ Date: 1900-2000 ; Origin: ion + -sphere (as in atmosphere ) ]

the ionosphere the part of the ↑ atmosphere which is used to help send radio waves around the Earth

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.