1. cerium

noun. a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group.


  • bastnasite
  • ytterbite
  • metallic element
  • bastnaesite
  • gadolinite
  • monazite
  • Ce
  • metal


  • -ium (English)
  • -um (Latin)
  • Ceres (English)
  • Ceres (Latin)

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Sentences with cerium

1. Noun, singular or mass
Apply cerium oxide glass polishing compound to your buffing pad and repeat steps one, two and three to remove micro scratches and haze from the surface of the glass and restore a clear shiny luster to the surface.