1. 
   yttrium Y 90
   A radioactive form of the rare metal yttrium that is used in radiation therapy to treat some types of tumors. Yttrium Y 90 can be linked to a molecule, such as a monoclonal antibody, to help it locate and bind to certain substances in the body, including cancer cells. The radiation may kill the canc...
   Found op http://www.cancer.gov/dictionary?expand=Y
   
   
2. 
   yttrium-90
   An artificial radioactive isotope with a physical half-life of 2.67 days which decays with the emission of a 2.282 Mev b particle; used as an implant in pituitary ablation. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?yttrium-90
   
   
3. 
   yttrium-90
   Type: Term Pronunciation: it′rē-ŭm Definitions: 1. An artificial radioactive isotope with a physical half-life of 2.67 days, which decays with the emission of a 2.282 MeV β particle; used as an implant in pituitary ablation.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=100330
   
   

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