Dutch edit

 
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Etymology edit

Borrowed, probably from French or Germen. Equivalent to iono- +‎ -sfeer. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

Pronunciation edit

  • IPA(key): /ˌjoː.noːˈsfeːr/, /ˌi.oː.noːˈsfeːr/
  • (file)
  • Hyphenation: io‧no‧sfeer
  • Rhymes: -eːr

Noun edit

ionosfeer m (plural ionosferen)

  1. ionosphere [from 1930s]

Derived terms edit