# uranin

> English word · Noun

## Definitions
1. An alkaline salt of fluorescein, used as a brownish-red dye.

## Etymology
From uranium + -in, from its yellowish-green fluorescence, resembling that of uranium glass.

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