interspinalis
noun
                                                                                                                            
                                                            in·ter·spi·na·lis
                    
                                                                                                              
                                                                                                                                  ˌint-ər-ˌspī-ˈnal-əs 
                                                                                                                                  -ˈnā-ləs 
                                                      
                                                          
            
            
               plural interspinales
                                        -ˌlēz 
    
            
        
    
                                
              
          
                                                      : any of various short muscles that have their origin on the superior surface of the spinous process of one vertebra and their insertion on the inferior surface of the contiguous vertebra above                                      
                
                    
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