# thin section

> English word · Noun

## Definitions
1. A thin, optically flat sliver of a material, especially a rock or mineral, that can be used in microscopy.
2. Used other than figuratively or idiomatically: see thin, section.

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