atomic number 67

Thesaurus

Noun

1.atomic number 67 - a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compoundsHo, holmiummetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.gadolinite, ytterbite - a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium