# polyoxymethylene

> English word · Noun

## Definitions
1. A polymer of formaldehyde having a repeat unit of -CH₂-O- ; it is used in engineering to make small gears etc

## Etymology
From poly- + oxy- + methylene.

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