Definition of pyroclastic flow in English:

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pyroclastic flow

noun

Geology
A dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing at great speed.
Example sentences
  • They may be buried in place by inundation of sediment or even by lavas or pyroclastic flows.
  • The eruption has been characterized by lava dome extrusion, dome-collapse pyroclastic flows and explosive activity.
  • Even scarier and more destructive than volcanic mudflows are pyroclastic flows or glowing avalanches.

For editors and proofreaders

Line breaks: pyro|clas¦tic flow

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