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火砕丘 (kasaikyuu) Japanese meaning: pyroclastic cone | Kotomora

火か砕さい丘きゅう

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Meanings

1

pyroclastic cone

A volcanic landform built from fragments ejected during an eruption; a technical term in geology.

火か砕さい丘きゅうは火か山ざん活かつ動どうによって形けい成せいされる地ち形けいの一ひとつだ

Kanji

火fire
砕smash, break, crush
丘hill, knoll

Related words

火か山ざん
火山 is the general term for a volcano, while 火砕丘 specifically refers to a cone-shaped accumulation of pyroclastic material.

Etymology

Compound of 火砕 (pyroclastic) and 丘 (hill, mound). The exact historical derivation is uncertain; the spelling is conventionally associated with the geological meaning.

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A pyroclastic cone is one of the landforms created by volcanic activity.