Saint Helens, Mount
geographical name
                                
              
          
                                                      volcanic mountain now 8363 feet (2549 meters) high in the Cascade Range of southwestern Washington which had a major eruption on May 18, 1980 that removed its central peak and lowered its height by about 1300 feet                                      
                
                    
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  Merriam-Webster unabridged




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