thulium

/thoo-lee-uhm/US // ˈθu li əm //UK // (ˈθjuːlɪəm) //

铥,钍,硫磺,铥元素

Definitions

n.名词 noun

1
Chemistry.
- : a rare-earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; atomic weight: 168.934; atomic number: 69; specific gravity: 9.32.