adj 1  :  having little resistance to a specific infectious disease  :  capable of being infected  2  :  predisposed to develop a noninfectious disease < to diabetes>   3  :  abnormally reactive to various drugs
n :  one that is susceptible (as to a disease) <vaccinate all s in each region where outbreaks appeared -A. J. Bollet>  .
 
 
 
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