# thermobarometer

> English word · Noun

## Definitions
1. An instrument that measured altitudes via the boiling point of water.
2. A mineral used to estimate temperature and pressure in the rocks during its formation.

## Etymology
From thermo- + barometer.

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