# microprobe

> English word · Noun

## Definitions
1. An instrument used to determine the chemical composition at a point on a solid surface, such as that of a mineral. It analyzes the X-rays emitted when a beam of electrons are focused on the sample.

## Etymology
From micro- + probe.

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