# thermochronology

> English word · Noun

## Definitions
1. A form of radiometric dating used to estimate the time since a rock solidified.

## Etymology
From thermo- + chronology.

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