rockfall

American  

[rok-fawl] / ˈrɒkˌfɔl /

noun

1. an act or instance of the falling of rock, as in a cave-in or an avalanche.

2. a mass of rocks rock that have fallen: fall.

   to be trapped under a rockfall.

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Etymology

Origin of rockfall

First recorded in 1920–25; rock ¹ + fall

Example Sentences

The Radical Road has been regularly temporarily closed after significant volumes of rockfall over the last century, including a 100-tonne fall in 2011.

From BBC

The section with the highest and intolerable risk has an estimated probability of a fatality from a rockfall event of one in 4,886.

From BBC

It was asked to revise them in February last year to reflect the new rankings of what levels of rockfall risk would be considered acceptable.

From BBC

Other wider sections of the Radical Road would have a sloped earth embankment built to catch any rockfall.

From BBC

Engineering firm Fairhurst first presented HES with options for long-term rockfall mitigation in 2019.

From BBC