yttrium

2 ENTRIES FOUND:

yt·tri·um

noun \ˈi-trē-əm\

Definition of YTTRIUM

:  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 of YTTRIUM

New Latin, from yttria yttrium oxide (Y2O3), irregular from Ytterby, town in southern Sweden
First Known Use: 1814

yt·tri·um

noun \ˈi-trē-əm\   (Medical Dictionary)

Medical Definition of YTTRIUM

: 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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