palatogram
noun
                                                                                                                            
                                                            pal·a·to·gram
                    
                                                                                                              
                                                                                                                                  ˈpal-ət-ə-ˌgram 
                                                      
                                                          
            
                                
              
          
                                                      : a record of the movement of the tongue and palate in the articulation of sounds                                      
                
                    
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  Merriam-Webster unabridged




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