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radioactivemore about radioactive

radioactive


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Radio-active  \Ra`di*o-ac"tive\,  a.  [Radio-  +  active.]  (Physics) 
  Capable  of  luminescence  under  the  action  of  cathode  rays,  X 
  rays,  or  any  of  the  allied  forms  of  radiation.  -- 
  {Ra`di*o-ac*tiv"i*ty},  n. 
 
  From  WordNet  r  1.6  [wn]: 
 
  radioactive 
  adj  :  exhibiting  or  caused  by  radioactivity;  "radioactive 
  isotope";  "radioactive  decay";  "radioactive  fallout" 
  [ant:  {nonradioactive}] 




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