Meanings
nounKilling horizon (plural Killing horizons)
plural Killing horizons
- mathematicsA geometrical construct used in general relativity and its generalizations to delineate spacetime boundaries without reference to the dynamic Einstein field equations.
Cite this entry
APA
Killing horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Killing%20horizon
MLA
“Killing horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Killing%20horizon. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “Killing horizon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Killing%20horizon.
Source: Killing horizon on Wiktionary, CC BY-SA 4.0.