mount st. helens

1. An active volcano in the Cascade Range in southwestern Washington;
   Erupted violently in 1980 after 123 years of inactivity (synset 109200282)
   is an instance of: volcano - a mountain formed by volcanic material
   is a part of:

   • evergreen state, wa, wash., washington - a state in northwestern United States on the Pacific
   • cascade mountains, cascade range, cascades - a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range
   same as: mount saint helens, mt. st. helens

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