pyroclastic

adjective
py·​ro·​clas·​tic | \ ˌpī-rō-ˈkla-stik \

Definition of pyroclastic

: formed by or involving fragmentation as a result of volcanic or igneous action

Examples of pyroclastic in a Sentence

Recent Examples on the Web

Lahar is described as flow of pyroclastic material and slurry. Ryan Gaydos, Fox News, "Guatemala volcano eruption kills at least 65, forces thousands to evacuate," 2 Oct. 2018 Unlike Pompeii, which was only hit by falling volcanic ash, Herculaneum was directly in the path of pyroclastic flows headed to the sea. Avery Thompson, Popular Mechanics, "Mount Vesuvius Caused Romans' Heads to Explode," 10 Oct. 2018 Dramatic video showed a fast-moving lahar, or flow of pyroclastic material and slurry, slamming into and partly destroying a bridge on a highway between Sacatepequez and Escuintla. Sonia Perez D., BostonGlobe.com, "Death toll in Guatemala volcano eruption now at 25," 4 June 2018 Dramatic video showed a fast-moving lahar, or flow of pyroclastic material and slurry, slamming into and partly destroying a bridge on a highway between Sacatepequez and Escuintla. Sonia Perez D., Fox News, "Guatemala volcano eruption kills at least 7, rescue hampered," 4 June 2018 Dramatic video showed a fast-moving lahar, or flow of pyroclastic material and slurry, slamming into and partly destroying a bridge on a highway between Sacatepequez and Escuintla. Time, "Guatemala's Fuego Volcano Erupts, Sending Lava Into Homes and Killing 25," 4 June 2018 Most of the people were either flash-heated to death from the pyroclastic flow or died from asphyxiation. New York Times, "He Died at Pompeii, but His Head Wasn’t Crushed by a Block," 29 June 2018 Guatemala’s Fuego volcano eruption on Sunday, which killed at least 75 people, formed a pyroclastic flow. Mahita Gajanan, Time, "8 of the World’s Most Dangerous Volcanoes, According to Experts," 6 June 2018 The collapse of these clouds causes a deadly avalanche of hot rocks, gas, and volcanic ash that races down the mountainside in a deadly pyroclastic flow. Jason Daley, Smithsonian, "Five Things to Know About Guatemala’s Deadly Volcanic Eruption," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pyroclastic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pyroclastic

1862, in the meaning defined above

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Last Updated

14 Feb 2019

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Time Traveler for pyroclastic

The first known use of pyroclastic was in 1862

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