Dictionary
ionosphere
noun ion·o·sphere \ī-ˈä-nə-ˌsfir\
Definition of IONOSPHERE
: the part of the earth's atmosphere in which ionization of atmospheric gases affects the propagation of radio waves, which extends from about 30 miles (50 kilometers) to the exosphere, and which is contiguous with the upper portion of the mesosphere and the thermosphere; also : a comparable region of charged particles surrounding another celestial body (as Venus)
— ion·o·spher·ic \ˌī-ˌä-nə-ˈsfir-ik, -ˈsfer-\ adjective
— ion·o·spher·i·cal·ly \-i-k(ə-)lē\ adverb
See ionosphere defined for kids
ADVERTISEMENT
First Known Use of IONOSPHERE
1926
Rhymes with IONOSPHERE
IONOSPHERE Defined for Kids
ionosphere
noun ion·o·sphere \ī-ˈä-nə-ˌsfir\
Definition of IONOSPHERE for Kids
: the part of the earth's atmosphere beginning at an altitude of about 30 miles (50 kilometers) and extending outward that contains electrically charged particles
Learn More About IONOSPHERE
Browse
Next Word in the Dictionary: ionotropyPrevious Word in the Dictionary: ionosondeAll Words Near: ionosphere
ADVERTISEMENT
Seen & Heard
What made you want to look up ionosphere? Please tell us where you read or heard it (including the quote, if possible).