cosmic event horizon

noun

The cosmological horizon; the edge of the observable universe.

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Meanings

nouncosmic event horizon (plural cosmic event horizons)

plural cosmic event horizons

  1. The cosmological horizon; the edge of the observable universe.

Synonyms & antonyms

Also see
cosmological horizon

Origin

From cosmic + event horizon.

Full word history & related roots →
Cite this entry
APA

cosmic event horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/cosmic%20event%20horizon

MLA

“cosmic event horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cosmic%20event%20horizon. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “cosmic event horizon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/cosmic%20event%20horizon.

Source: cosmic event horizon on Wiktionary, CC BY-SA 4.0.