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ytterbium
ytterbium n. 
/ɪˈtɜːbɪəm/ [modern Latin (Marignac)] a rare metallic element occurring in gadolinite, etc.
/ɪˈtɜːbɪəm/ [modern Latin (Marignac)] a rare metallic element occurring in gadolinite, etc.ΘΚΠ
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Yb1878
ytterbium1879
1879 Jrnl. Chem. Soc. 36 118 Ytterbium, a new Metal from Gadolinite... Ytterbium sulphate resembles..the sulphates of yttrium and erbium.
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