circumgalactic medium

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|astronomy|plasma physics}} {{l|en|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.}}

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.