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 element of the lanthanide series, with unusual magnetic properties including the highest magnetic moment of any naturally occurring element, found in minerals such as gadolinite and monazite. 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.