terbium 的定义
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.
更多terbium例句
- 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.