# photocage

> English word · Noun

## Definitions
1. Any of several molecular species that can be activated by light; they are used especially in biochemistry to attach a molecule to a biologically active compound and then study its behaviour once activated.

## Etymology
From photo- + cage.

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