# micrometeorite

> English word · Noun

## Definitions
1. an extraterrestrial particle, less than a millimeter in size, that has survived entry into the atmosphere without melting

## Etymology
From micro- + meteorite (micro- + meteor + -ite).

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