hol·mi·um | \ ˈhō(l)-mē-əm 
\
\Definition of holmium
: a metallic element of the rare-earth group that forms highly magnetic compounds and is obtained especially from monazite — see Chemical Elements Table
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holmium
nounhol·mi·um | \ ˈhō(l)-mē-əm \
\Medical Definition of holmium
: a metallic element of the rare-earth group that occurs with yttrium and forms highly magnetic compounds
—symbol Ho — see Chemical Elements Table
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Time Traveler for holmium
The first known use of holmium was in 1879
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