terbium /ter·bi·um/ (ter´be-um) chemical element, at. no. 65, symbol Tb.
terbium (Tb)
ter·bi·um (tûr b - m)n. Symbol Tb A soft metallic rare-earth element used in x-ray tubes. Atomic number 65. |
terbium (Tb)
[tur′bē·əm]
Etymology: Yterby, Sweden
a rare earth metallic element. Its atomic number is 65, and its atomic mass is 158.294.
terbium
a chemical element, atomic number 65, atomic weight 158.924, symbol Tb. See Table 6.
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