rockfall

noun

rock·​fall ˈräk-ˌfȯl How to pronounce rockfall (audio)
: a mass of falling or fallen rocks

Examples of rockfall in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The trail leading to an 80-foot waterfall closed to the public after a rockfall in the spring of 1999 killed eight people and injured many others, according to the Department of Land and Natural Resources. Sara Schilling, Sacramento Bee, 11 Feb. 2025 Hidden lava tubes and rockfalls around the Halemaʻumaʻu crater are common, which remains closed to the public due to safety concerns. Jonathan Granoff, Newsweek, 28 Jan. 2025 The scientists found a daily correlation between rockfall frequency and air temperature; on average, only two hours separates temperature rise and subsequent rockfall. Paul Hockenos, Smithsonian Magazine, 9 Jan. 2025 Pressure builds and fractures the rock, prompting rockfalls and avalanches. Paul Hockenos, Smithsonian Magazine, 9 Jan. 2025 See all Example Sentences for rockfall 

Word History

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of rockfall was in 1901

Dictionary Entries Near rockfall

Cite this Entry

“Rockfall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rockfall. Accessed 19 Feb. 2025.

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