pyroclastic means mostly composed of rock fragments of volcanic origin or comminuted during an eruption. It carries an Arena rating of 1484, earned across 5 head-to-head judged battles.
Among words judged in Lexicurio's Arena, pyroclastic ranks #142 of 17,128 for Most Ponderous Words, #1,158 of 17,124 for Most Sublime Words, #1,200 of 17,126 for Most Satisfying to Say, #1,314 of 17,131 for Scariest Words.
Why “pyroclastic” is a great word
Composed chiefly of rock fragments produced by volcanic explosion or aerial expulsion from a volcanic vent. From pyro- (from Ancient Greek πῦρ (pûr, "fire")) + clastic (from Ancient Greek κλαστός (klastós, "broken")). Unlike "volcaniclastic" (which encompasses all fragmental volcanic material, including that transported and redeposited by water or ice) or "lava" (which denotes molten rock that flowed before solidifying), pyroclastic refers specifically to the raw, explosive residue flung skyward in fury. It is the searing grit that scours the mountainside, the ashen dust that coats the tongue with the taste of burnt stone, and the still-glowing avalanche that moves like a living thing—the geologic evidence of a world being unmade, not built.
Etymology
From pyro- + clastic, from Ancient Greek πῦρ (pûr, “fire”), and κλαστός (klastós, “broken”).
adj
- Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.
noun
- A rock mostly composed of rock fragments of volcanic origin.e.g.“The basic volcanics are altered andesites, porphyritic diabases and andesites, and various pyroclastics.” — 1897, “General Notes: Geology and Paleontology”, in Edward D. Cope, Frederick C. Kenyon, editors, The American Naturalist: An Illustrated Magazine of Natural History, volume 31, Philadelphia: The Edwa
Definitions & examples from Wiktionary (CC BY-SA 3.0).
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