# nucleocosmochronology

> English word · Noun

## Definitions
1. A technique for estimating the age of astronomical objects by measuring the relative abundances of isotopes

## Etymology
From nucleo- + cosmochronology.

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