Definition

Proper noun: * Mount Saint Helens: An active stratovolcano located in the Cascade Range of the Pacific Northwest, in the state of Washington, United States. It is most famous for its catastrophic and deadly eruption on May 18, 1980, which was the most economically destructive volcanic event in U.S. history.

Usage Examples

• Proper noun:
  • The 1980 eruption of Mount Saint Helens dramatically changed the landscape.
  • Scientists continuously monitor Mount Saint Helens for seismic activity.
  • We visited the Mount Saint Helens National Volcanic Monument to see the recovery of the ecosystem.

Advanced Usage

• The name "Mount Saint Helens" is often used metonymically to refer specifically to the 1980 eruption event and its aftermath.
  • The geological lessons learned from Mount Saint Helens have been applied to volcanoes worldwide.

Variants and Related Words

• MSH (initialism): A common abbreviation used in scientific and geological contexts.
  • The MSH eruption column reached about 80,000 feet.
• Loowit (proper noun): The native Klickitat name for the mountain, meaning "smoking" or "fire mountain."

Synonyms

• The volcano (when context is clear):
• St. Helens (informal shortening):

Related Phrases

• Mount St. Helens eruption: The specific event of May 18, 1980.
  • The Mount St. Helens eruption was preceded by two months of earthquakes and steam-venting.
• Spirit Lake: A lake at the base of the mountain famously affected by the 1980 eruption.
  • The landslide from the eruption raised the bed of Spirit Lake by over 200 feet.

Noun

1. an active volcano in the Cascade Range in southwestern Washington; erupted violently in 1980 after 123 years of inactivity