# renormalon

> English word · Noun

## Definitions
1. A poorly-understood and, so far, undefined singularity associated with quantum chromodynamics

## Etymology
From renormalize + -on.

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