circumgalactic medium

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circumgalactic medium

noun circumgalactic mediums · circumgalactic media

countable, uncountable The gas and plasma in the region surrounding a galaxy, beyond the galactic disc or ovoid, or interstellar medium (ISM), but within the galaxy's virial radius.
Similar: CGM

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MLA

"circumgalactic medium." Wiktionary, via Micwyn, micwyn.com/word/circumgalactic%20medium. Accessed 6 Nov. 2026.

APA

circumgalactic medium. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/circumgalactic%20medium

Chicago

"circumgalactic medium." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/circumgalactic%20medium.

BibTeX

@misc{circumgalactic_medium_2026,
  title = {circumgalactic medium},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/circumgalactic%20medium},
  urldate = {2026-11-06}
}