Lanthanide

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  lanthanide \lanthanide\ n.
     Any rare earth element of the lanthanide series (atomic
     numbers 57 through 71).
  
     Syn: rare earth, rare-earth element, lanthanon.
          [WordNet 1.5]



From WordNet (r) 2.0 [wn]:

  lanthanide
       n : any element of the lanthanide series (atomic numbers 57
           through 71) [syn: {rare earth}, {rare-earth element}, {lanthanoid},
            {lanthanon}]