holmium
noun
hol·mi·um ˈhō(l)-mē-əm 
: a metallic element of the rare-earth group that forms highly magnetic compounds and is obtained especially from monazite see Chemical Elements Table
Word History
Etymology
New Latin, from Holmia Stockholm, Sweden
First Known Use
1879, in the meaning defined above
Medical Definition
holmium
noun
hol·mi·um ˈhō(l)-mē-əm
: a metallic element of the rare-earth group that occurs with yttrium and forms highly magnetic compounds —symbol Ho see Chemical Elements Table