# light sector

> English word · Noun

## Definitions
1. The known universe; the part of the universe that is not part of the dark sector; the segment of the universe that is explained by the known laws of physics, and whose components (particles) are predicted by it. The portion of the universe that is not dark matter nor dark energy.
2. The known universe; the part of the universe that is not part of the dark sector; the segment of the universe that is explained by the known laws of physics, and whose components (particles) are predicted by it. The portion of the universe that is not dark matter nor dark energy.

## Etymology
Blend of light + dark sector. From not being part of the dark sector.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/light-sector