yttrium

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noun yt·tri·um \ˈi-trē-əm\

Definition of yttrium

  1. :  a metallic element usually included in the rare-earth group that occurs usually with other rare earth elements in minerals and is used especially in phosphors, YAG lasers, and superalloys — see element table

Origin and Etymology of yttrium

New Latin, from yttria yttrium oxide (Y2O3), irregular from Ytterby, town in southern Sweden


First Known Use: 1814


Medical Dictionary

yttrium

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noun yt·tri·um \ˈi-trē-əm\

Medical Definition of yttrium

  1. :  a trivalent metallic element usually included among the rare earth elements which it resembles chemically and with which it occurs in minerals—symbol Y; see element table


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