# Hagedorn temperature

> English word · Proper noun

## Definitions
1. The temperature at which hadronic matter (i.e. ordinary matter) is no longer stable, and must either "evaporate" or convert into quark matter.

## Etymology
Discovered by German physicist Rolf Hagedorn in the 1960s.

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