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Yttrium   Listen
noun
Yttrium  n.  (Written also ittrium)  (Chem.) A rare metallic element of the boron-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic number 39. Atomic weight, 88.9. Note: Associated with yttrium are certain rare elements, as erbium, ytterbium, samarium, etc., which are separated in a pure state with great difficulty. They are studied by means of their spark or phosphorescent spectra. Yttrium is now regarded as probably not a simple element, but as a mixture of several substances.






Collaborative International Dictionary of English 0.48








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Words linked to "Yttrium" :   ytterbite, atomic number 39, metal, fergusonite, gadolinite



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