terbium
/tur-bee-uhm/US // ˈtɜr bi əm //UK // (ˈtɜːbɪəm) //
铽,铕,钍,钽
Definitions
n.名词 noun
- 1
Chemistry.
- : a rare-earth, metallic element present in certain minerals and yielding colorless salts. Symbol: Tb; atomic number: 65; atomic weight: 158.924; specific gravity: 8.25.
Examples
Erbium, a rare metal found along with yttrium, terbium, and other rare elements in some rare minerals.
Terbium, ter′bi-um, n. a rare metal found in certain yttrium minerals.
(c.) Yttria (YO) occurs only in a few rare minerals, and usually in company with terbium and erbium.
Level 5Browse all words →