| 单词 | brownian movement |
| 释义 | Brownian movement in British English (ˈbraʊnɪən) or Brownian motion noun random movement of microscopic particles suspended in a fluid, caused by bombardment of the particles by molecules of the fluid. First observed in 1827, it provided strong evidence in support of the kinetic theory of molecules Word origin C19: named after Robert BrownBrownian movement in American English (ˈbraʊniən) the constant, random, zigzag movement of small particles dispersed in a fluid medium, caused by collision with molecules of the fluid : also Brownian motion Word origin after R. Brown (1773-1858), Brit botanist who described it |
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