A trivalent metallic element of the rare earth group

• Element named for its discoverer's Scandinavian brithplace
• Forms highly magnetic compounds
• Occurs together with yttrium

Wiktionary Word definitions in Wiktionary
n. A metallic chemical element (''symbol'' Ho) with an atomic number of 67.

WordNet Word definitions in WordNet
n. a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds [syn: Ho , atomic number 67 ]

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
rare earth element, named by French chemist Lecoq de Boisbaudran (1838-1912) in 1886, from holmia "holmium oxide," a Modern Latin word coined by the earth's discoverer, Swedish chemist Per Teodor Cleve (1840-1905), in 1879 from Holmia , Latin name of Stockholm ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Holmium \Hol"mi*um\, n. [NL., from Stockholm.] (Chem.) A rare element of atomic number 67 said to be contained in gadolinite. Chemical symbol Ho. Atomic weight 164.93. Valence +3. It was detected by spectral absorption bands in 1878 by the Delafontaine ...

Wikipedia Word definitions in Wikipedia
Holmium is a chemical element with symbol Ho and atomic number 67. Part of the lanthanide series , holmium is a rare earth element . Holmium was discovered by Swedish chemist Per Theodor Cleve . Its oxide was first isolated from rare earth ores in 1878 ...