# Réaumur scale

> English word · Proper noun

## Definitions
1. A temperature scale on which 0 °C is 0 and 100 °C is 80.
2. A temperature scale on which water freezes at 0 and the alcohol mixture expands by 8% and boils at 80.

## Etymology
Named after the French scientist René Antoine Ferchault de Réaumur (1683–1757).

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