# roll cloud

> English word · Noun

## Definitions
1. A low, horizontal, tube-shaped, and relatively rare type of arcus cloud, differing from shelf clouds by being completely detached from other cloud features.

## Etymology
They usually appear to be "rolling" about a horizontal axis.

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