# photodecomposition

> English word · Noun

## Definitions
1. Any photochemical reaction that results in the decomposition of a substance

## Etymology
From photo- + decomposition.

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