# phototoxin

> English word · Noun

## Definitions
1. Any toxin that causes an allergic reaction in the skin, developing into photosensitivity.

## Etymology
From photo- + toxin.

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