Definition of pyroclastic in English:

pyroclastic

Syllabification: py·ro·clas·tic
Pronunciation: /ˌpīrōˈklastik
 
/
Geology

adjective

  • Relating to, consisting of, or denoting fragments of rock erupted by a volcano.
    More example sentences
    • In practice pyroclastic and volcaniclastic rocks include all the products of extrusive volcanic activity except lava flows.
    • Samples of pyroclastic rocks were examined in thin section.
    • Erosion of old lava dome complexes has resulted in deep valleys that dissect pyroclastic and volcanoclastic fans.

Derivatives

pyroclast

Pronunciation: /ˈpīrōˌklast/
noun
More example sentences
  • Eruption at the surface then yields initial tephrite, typically erupted as pyroclasts.
  • These fluids altered and metasomatized the previously emplaced volcanic products (lavas, pyroclasts).

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