supershell

English

Etymology

From super- +‎ shell.

Pronunciation

  • Audio (US):(file)

Noun

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

Coordinate terms

(space plasmas):

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