noun. 
                    In medicine, an unusual predisposition toward infection or the attacks of infectious disease.
                  
                
                  
                    noun. 
                    In electricity, the ratio of the magnetization produced in a specimen of iron, or other material, to the magnetizing force.
                  
                
                  
                    noun. 
                    The state or character of being susceptible; the capability of receiving impressions or change, or of being influenced or affected; sensitiveness.
                  
                
                  
                    noun. 
                    Capacity for feeling or emotion of any kind; sensibility: often in the plural.
                  
                
                  
                    noun. 
                    Specifically, a special tendency to experience emotion; peculiar mental sensitiveness.