baleen whale
noun
                                
              
          
                                                      : any of a suborder (Mysticeti) of usually large whales typically of colder waters that lack teeth but have baleen plates in the upper jaw which are used to filter chiefly small crustaceans (such as krill) out of large quantities of seawater   see fin whale, gray whale, humpback whale, right whale, rorqual   compare toothed whale                                      
                
                    
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  Merriam-Webster unabridged




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