clast

noun
\ ˈklast How to pronounce clast (audio) \

Definition of clast

: a fragment of rock

Examples of clast in a Sentence

Recent Examples on the Web On the streets of Juarez, many emulate the Lopez Obrador’s cavalier attitude, one deeply woven into the iron clast cultural beliefs that life and death are tightly interwoven. Dallas News, "El Paso cracks down; Juarez and AMLO worry many about attitude toward coronavirus," 28 Mar. 2020 Most of the rock fragments, or clasts, are dark in color, according to Michael Greshko at National Geographic, resembling lunar material. Jay Bennett, Smithsonian, "Earth’s Oldest Known Rock May Have Been Found on the Moon," 28 Jan. 2019 Researchers believe that the serpentine found in the clasts could form at depths of up to 12.5 miles down, where the subducting slab lies below the volcano. Jason Daley, Smithsonian, "How Low Can Life Go? New Study Suggests Six Miles Down," 18 Apr. 2017 There is a lot of great information on the eruption on a website hosted by the University of Tokyo (Japanese – try Google Translate) that has compositional data and images of clasts from the eruption – Erik Klemetti, WIRED, "Expanded evacuations as the Kirishima eruption continues," 31 Jan. 2011 Researchers believe that the serpentine found in the clasts could form at depths of up to 12.5 miles down, where the subducting slab lies below the volcano. Jason Daley, Smithsonian, "How Low Can Life Go? New Study Suggests Six Miles Down," 18 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'clast.' 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 clast

1952, in the meaning defined above

History and Etymology for clast

Greek klastos broken, from klan to break; perhaps akin to Latin clades disaster

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Time Traveler for clast

Time Traveler

The first known use of clast was in 1952

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Cite this Entry

“Clast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/clast. Accessed 8 Jul. 2020.

More from Merriam-Webster on clast

Rhyming Dictionary: Words that rhyme with clast

Britannica.com: Encyclopedia article about clast

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