pyroclastic
IPA/ˌpaɪ.rəˈklæs.tɪk/
IPA/ˌpaɪ.roʊˈklæs.tɪk/
pyroclastic — adjective
- pyroclasticpositive
- more pyroclasticcomparative
- most pyroclasticsuperlative
1. describing rock material made up of fragments, ash, and debris that were violent
1.形容詞C2
釋義
describing rock material made up of fragments, ash, and debris that were violently ejected from a volcano during an eruption
例句
Astrid studied the pyroclastic flow that buried Pompeii in AD 79.
collocation: pyroclastic flow
Tariq examined a pyroclastic rock sample under the microscope in the lab.
The pyroclastic cloud from Mount St. Helens darkened the sky for hours.
Ada's geology textbook had a striking photo of pyroclastic layers in Iceland.
Femi explained how pyroclastic surges can travel faster than a speeding car.
同義詞
- volcaniclastic
a broader term covering all fragmented volcanic material, not only eruption ejecta
用法筆記
Restricted to geological descriptions of volcanic material — used for flows, surges, ash deposits, and rock formed from eruption debris.
常見錯誤
❌The pyroclastic heat melted the roads.
✅The pyroclastic flow buried the town in ash and rock.
💡'pyroclastic' describes rock fragments from eruptions, not fire or heat directly.