# thulia

> English word · Noun

## Definitions
1. The rare earth thulium oxide, Tm₂O₃.

## Etymology
From New Latin thūlia. Named in 1879 by Swedish chemist Per Teodor Cleve.

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