Last Updated：2025/11/20

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(physics) Random motion of particles suspended in a fluid, arising from those particles being struck by individual molecules of the fluid. / (by extension) A state of chaos or disarray.

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Brownian motion

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Source Word

Brownian motion

Noun

countable uncountable broadly

(physics) Random motion of particles suspended in a fluid, arising from those particles being struck by individual molecules of the fluid. / (by extension) A state of chaos or disarray.

Japanese Meaning

（物理学）流体中に懸濁した粒子が、流体分子との衝突によって起こるランダムな運動。 / （転じて）混沌または無秩序な状態。