# thulium

> English word · Noun · IPA /ˈθjuːliəm/

## Definitions
1. A metallic chemical element (symbol Tm) with atomic number 69: a fairly soft, easily workable metal with a bright silvery-gray lustre.

## Etymology
From Thule (a poetic name for Scandinavia) + -ium.

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