Definition of clast
: a fragment of rock
Recent Examples of clast from the Web
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 –
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Origin and Etymology of clast
Greek klastos broken, from klan to break; perhaps akin to Latin clades disaster
First Known Use: 1952See Words from the same year
Seen and Heard
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