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1 definition found
 for atomic number 53
From WordNet (r) 3.0 (2006) :

  atomic number 53
      n 1: a nonmetallic element belonging to the halogens; used
           especially in medicine and photography and in dyes; occurs
           naturally only in combination in small quantities (as in
           sea water or rocks) [syn: iodine, iodin, I, atomic
           number 53]

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