supershell

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English

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Etymology

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From super- +‎ shell.

Pronunciation

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  • Audio (US):(file)

Noun

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supershell (plural supershells)

  1. (astronomy) A large region carved out of the interstellar medium by the combination of several supernova shells, leading to a lower density of gas and plasma within than without, larger than any single supernova could create.

Synonyms

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Coordinate terms

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(space plasmas):

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