Definition of Brownian motion in English:
noun[mass noun] Physics
The erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.
- Second, he explained the jittery dance of microscopic particles - Brownian motion - as the buffets of surrounding atoms.
- The amplitude of the displacements of unattached beads diminishes with a constant slope of - 2, as expected for Brownian motion in a viscous medium (sugar water).
- This does not occur in practice, since random forces such as Brownian motion perturb the cell's trajectory.
late 19th century: named after Robert Brown (1773–1858), the Scottish botanist who first observed the motion.
Definition of Brownian motion in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in Malaysia