Brownian Motion Definition

The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium.
American Heritage

Origin of Brownian Motion

  • Named after botanist Robert Brown (1773-1858) who investigated the movement of pollen suspended in water.

    From Wiktionary

  • After Robert Brown

    From American Heritage Dictionary of the English Language, 5th Edition

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Brownian motion