Holmium Definition
 hōlmē-əm 
    noun
  
 A relatively soft, lustrous, malleable rare-earth element, with unusual magnetic properties including the highest magnetic moment of any naturally occurring element, found in gadolinite, monazite, and other rare-earth minerals. Atomic number 67; atomic weight 164.930; melting point 1,462°C; boiling point 2,700°C; specific gravity 8.795; valence 3.
 American Heritage 
A trivalent, silvery chemical element, one of the rare-earth elements: symbol, Ho; at. no. 67
 Webster's New World 
Synonyms: 
  - atomic number 67
 - ho
 
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