Meanings
noundark sector (plural dark sectors)
plural dark sectors
- astronomyThe unknown portion of the Universe outside standard physics, including dark matter and dark energy.
- astronomyThe fraction of the universe that is dark matter and dark energy.
Synonyms & antonyms
Opposite
Origin
From dark + sector. From being named after dark matter and dark energy, and being portion (sector) of a whole (universe).
Full word history & related roots →Cite this entry
APA
dark sector. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/dark%20sector
MLA
“dark sector.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dark%20sector. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “dark sector,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/dark%20sector.
Source: dark sector on Wiktionary, CC BY-SA 4.0.