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Definition of "rockfall" [rockfall]

  • A fall of rocks, as from a cliff. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "rockfall" in a sentence
  • "Mount St. Helens in Washington State shot a steam and ash plume at least 16,000 feet into the air Monday after a large rockfall from the lava dome in the volcano's crater."
  • "We scratched around but did not find any bison remains in the colluvium pile below, and the seemingly carefully placed stones at the front of the shallow cave were only natural rockfall from the ceiling."
  • "A remaining fear is that the rockfall that originally trapped them may have weakened the props holding up the mine."