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{%type%} Definitions

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Formed by fragmentation as a result of volcanic or igneous action.

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Usage examples (36)
  • The heavier particles stay close to the ground and roll downhill in what we call a pyroclastic flow.
  • An eruption might create something called a pyroclastic flow, or high-speed avalanche of hot rocks and gas.
  • At least 90 people were killed as a superheated clouds of ash, gas and debris known as pyroclastic flows tumbled down the mountain and incinerated villages.
  • "Monaco is also within range of pyroclastic missile danger."
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