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a property of ionizing radiations that affects their ability to cause biological effects. For weakly ionizing radiations such as gamma rays it has value 1 whilst for alpha rays it is about 20
relative biological effectiveness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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quality point average