# dark flow

> English word · Noun

## Definitions
1. A possible non-random component of the peculiar velocity of galaxy clusters.

## Etymology
From dark (“hidden”) + flow. From the motion of galaxy clusters due to a hidden influence, possibly from beyond the horizon of the observable universe.

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