# photogen

> English word · Noun

## Definitions
1. A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
2. A microorganism that produces phosphorescence.

## Etymology
From photo- + -gen.

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