a trivalent, silvery chemical element, one of the rare-earth elements: symbol, Ho; at. no. 67
Origin of holmiumModern Latin ; from earlier holmia, so named (1879) by P. T. Cleve (see cleveite), one of its discoverers, after Holmia, Latinized name of Stockholm, his native city + -ium
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. See Periodic Table.
Origin of holmiumAfter Holmia, (Stockholm), Sweden.
- A metallic chemical element (symbol Ho) with an atomic number of 67.