Pyroclastic
[pahy-ruh-klas-tik] /ˌpaɪ rəˈklæs tɪk/
adjective, Geology.
1.
composed chiefly of fragments of volcanic origin, as agglomerate, tuff, and certain other rocks; volcaniclastic.
/ˌpaɪrəʊˈklæstɪk/
adjective
1.
(of rocks) formed from the solid fragments ejected during a volcanic eruption
adj.
1887, from pyro- + clastic.
pyroclastic
(pī’rō-klās’tĭk)
Composed chiefly of rock fragments of explosive origin, especially those associated with explosive volcanic eruptions. Volcanic ash, obsidian, and pumice are examples of pyroclastic materials.
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