footprint
noun
                                                                                                                            
                                                            foot·print
                    
                                                                                                              
                                                                                                                                  ˈfu̇t-ˌprint  
                                                      
                                                          
            1
                    
                                          
              
          
                                                      : an impression of the foot on a surface                                      
                
                    
2
                    
        a
    
          
                                          
              
          
                                                      : the area on a surface covered by something                                      
              
                             
a tire with a wide footprint
                                       the footprint of a laser beam
                         
                
                    
        b
    
          
                                          
              
          
                                                      : range of operation (as of a service)                                      
              
                             
a global footprint
                         
                
                    3
                    
                                          
              
          
                                                      : a marked effect, impression, or impact                                      
              
                             
left a footprint in the field of research
                         
                
                    4
                    
                                          
              
          
                                                      : something that identifies                                      
              
                             
a genetic footprint
                         
                
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  Merriam-Webster unabridged




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