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P__________
Definitions
Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.
Word origin
From pyro- + clastic, from Ancient Greek πῦρ (pûr, “fire”), and κλαστός (klastós, “broken”).
Used in a sentence
“Within sixty seconds, the entire area was razed by pyroclastic material with a temperature of nearly two thousand degrees Fahrenheit.”
“The basic volcanics are altered andesites, porphyritic diabases and andesites, and various pyroclastics.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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