atomic number 70

Noun
  1. A soft silvery metallic element;
    A rare earth of the lanthanide series;
    It occurs in gadolinite and monazite and xenotime (synset 114685661)
    is a type of: metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
    substance meronym:
    • gadolinite, ytterbite - a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
    • monazite - a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
    • xenotime - a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form
    same as: yb, ytterbium

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