Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: yttrium  i-tree-um
  1. A silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminium alloys
    - Y, atomic number 39

Derived forms: yttriums

Type of: metal, metallic element

Part of: fergusonite, gadolinite, xenotime, ytterbite

Encyclopedia: Yttrium