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rare-earth element Definition

rare-earth element

noun

any of the series of metallic chemical elements, with consecutive atomic numbers of 57 (lanthanum) through 71 (lutetium) inclusive

Browse dictionary entries near rare-earth element

  1. rare earth
  2. rare bird
  3. rare
  4. rara avis
  5. rapturous
  6. rapture of the deep
  7. rapture
  8. raptorial
  9. raptor
  10. rapt
  1. rarebit
  2. raree show
  3. rarefied
  4. rarefy
  5. rarely
  6. rareripe
  7. rarify
  8. rarity
  9. Rarotonga
  10. RAS