# thermosetting

> English word · Adjective

## Definitions
1. Becoming permanently (irreversibly) hard or solidifying when heated.

## Etymology
From thermo- + setting.

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