Meanings
dark light1
- uncountableastronomyA hypothetical force of nature that acts on dark matter to allow dark matter to interact with itself.
dark light2
dark light3
Synonyms & antonyms
nounSynonym of black light (ultraviolet light)
nounSynonym of eigengrau.
Origin
dark light · noun
Blend of dark matter + light. From being a force found in the dark sector that acts on dark matter, analog to light in the "light sector" (the part of the universe that is not part of the dark sector) that acts on "light matter" (ordinary matter that interacts electromagnetically, thus visibly).
Full word history & related roots →dark light · noun
From dark + light; dark being like black, "dark" being a metaphor for the invisible (non-visible light).
Full word history & related roots →Cite this entry
dark light. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/dark%20light
“dark light.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dark%20light. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “dark light,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/dark%20light.
Source: dark light on Wiktionary, CC BY-SA 4.0.