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interstellar medium
From Wiktionary, the free dictionary
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English
Noun
- (astronomy) The matter that exists in the space between star systems in a galaxy, including gas, dust, and cosmic rays.
Synonyms
- ISM (abbreviation)
Derived terms
- ISM (abbreviation)
Related terms
- intracluster medium (ICM)
- intergalactic medium (IGM)
- interplanetary medium (IPM)
- extragalactic medium (EGM)
- extra-cluster medium (ECM)
Translations
matter existing between star systems
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See also
- interplanetary space
- intergalactic space
- extragalactic space
- deep space
- near space
- outer space
- Earthspace
- space
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