# photoswitch

> English word · Noun

## Definitions
1. A switch that is activated by light
2. A compound whose structure is changed, and whose function is activated by light

## Etymology
From photo- + switch.

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