Student Dictionary

One entry found for ionosphere.
Main Entry: ion·o·sphere
Pronunciation: imacr-primarystressän-schwa-secondarystresssfi(schwa)r
Function: noun
: the part of the earth's atmosphere beginning at an altitude of about 30 miles (50 kilometers) and extending outward that contains free electrically charged particles
- ion·o·spher·ic /imacr-secondarystressän-schwa-primarystresssfi(schwa)r-ik, -primarystresssfer-/ adjective

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