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1. (n.) terbium
a rare-earth, metallic element present in certain minerals and yielding colorless salts.
Etymology: (1843; (Yt)terb(y), a town in Sweden, source of rare earth–containing minerals + -ium2; cf. ytterbium)
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| Definition of 'Terbium' |
Princeton's WordNet |
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1. (noun) terbium, Tb, atomic number 65
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
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| Definition of 'Terbium' |
Webster Dictionary |
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1. (noun) Terbium
a rare metallic element, of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150
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| Definition of 'Terbium' |
U.S. National Library of Medicine |
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1. Terbium
Terbium. An element of the rare earth family of metals. It has the atomic symbol Tb, atomic number 65, and atomic weight 158.92.
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Definitions of Terbium 
