the ionosphere
noun [S] /aɪˈɒn.əˌsfɪər/
/-ˈɑːn.əˌsfɪr/ Definition
› part of the Earth's atmosphere, from about 60 kilometres to about 1,000 kilometres above the surface, in which there are many ions → Compare the stratosphereThe Earth and outer space - general words ionospheric /aɪˌɒ.nəˈsfer.ɪk/
/-ˌɑːn.ə-/ adjective The Earth and outer space - general words
/-ˌɑːn.ə-/ adjective The Earth and outer space - general words (Definition of the ionosphere noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
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Synonyms and related words:
- ablation noun
- atmospheric adjective (AIR)
- biosphere noun
- cosmic adjective
- eolian adjective
- geophysics noun
- gravity noun (FORCE)
- ground noun (LAND)
- horizon noun
- mid-air noun
- Mother Nature noun
- nature noun (LIFE)
- sky noun
- space platform noun
- subterranean adjective
- terra firma noun
- the Big Bang noun
- the cosmos noun
- the mesosphere noun
- the troposphere noun
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