Hypertext Webster Gateway: "Brownian"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Brownian \Brown"i*an\, a.
Pertaining to Dr. Robert Brown, who first demonstrated (about
1827) the commonness of the motion described below.
{Brownian movement}, the peculiar, rapid, vibratory movement
exhibited by the microscopic particles of substances when
suspended in water or other fluids.
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