# uranopilite

> English word · Noun

## Definitions
1. A fluorescent radioactive mineral, hydrated uranyl sulfate hydroxide.

## Etymology
From uranium + Ancient Greek πῖλος (pîlos, “felt”) + -ite, alluding to its composition and habit (containing uranium) and felt-like appearance.

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