Last Updated：2025/11/19

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A large mass of stone detached from the surrounding land. / (geology) A particle greater than 256 mm in diameter, following the Wentworth scale / A large marble, in children's games.

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boulder

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Source Word

boulder

IPA(Pronunciation)

/ˈbəʊl.də(ɹ)/

Noun

A large mass of stone detached from the surrounding land. / (geology) A particle greater than 256 mm in diameter, following the Wentworth scale / A large marble, in children's games.

Japanese Meaning

周囲の土地から切り離されている大きな石の塊 / ウェントワーススケールにおいて、直径256 mmを超える粒子 / 子供の遊びに使われる大きなビー玉