kickboard
noun
                                                                                                                            
                                                            kick·board
                    
                                                                                                              
                                                                                                                                  ˈkik-ˌbȯrd  
                                                      
                                                          
            
                                
              
          
                                                      : a buoyant rectangular board held by a swimmer while developing kicking techniques                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share