dark sector
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English[edit]
Etymology[edit]
dark + sector. From being named after dark matter and dark energy, and being portion (sector) of a whole (universe).
Noun[edit]
dark sector (plural dark sectors)
- (astrophysics, cosmology, astronomy, physics) The unknown portion of the Universe outside standard physics, including dark matter and dark energy.
- The fraction of the universe that is dark matter and dark energy.