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terbium
[ tur-bee-uhm ]
noun
, Chemistry.
- a rare-earth, metallic element present in certain minerals and yielding colorless salts. : Tb; : 65; : 158.924; : 8.25.
terbium
/ ˈtɜːbɪəm /
noun
- a soft malleable silvery-grey element of the lanthanide series of metals, occurring in gadolinite and monazite and used in lasers and for doping solid-state devices. Symbol: Tb; atomic no: 65; atomic wt: 158.92534; valency: 3 or 4; relative density: 8.230; melting pt: 1356°C; boiling pt: 3230°C
terbium
/ tûr′bē-əm /
- A soft, silvery-gray metallic element of the lanthanide series. It is used in color television tubes, x-ray machines, and lasers. Atomic number 65; atomic weight 158.925; melting point 1,356°C; boiling point 3,123°C; specific gravity 8.229; valence 3, 4.
- See Periodic Table
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Derived Forms
- ˈterbic, adjective
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Other Words From
- terbic adjective
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Word History and Origins
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Word History and Origins
Origin of terbium1
C19: from New Latin, named after Ytterby, Sweden, village where it was discovered
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Example Sentences
Erbium, a rare metal found along with yttrium, terbium, and other rare elements in some rare minerals.
From Project Gutenberg
Terbium, ter′bi-um, n. a rare metal found in certain yttrium minerals.
From Project Gutenberg
(c.) Yttria (YO) occurs only in a few rare minerals, and usually in company with terbium and erbium.
From Project Gutenberg
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