BrownÂ·iÂ·an motion. n. The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium. Also called Brownian movement. [After Robert Brown .].rownian motion-the random motion of small particles suspended in a gas or liquid. Brownian movement, pedesis. motion, movement-a natural event that involves a change in the position or location of something. 1  Facebook.
Fullerton, CA Police patch. The Fullerton Police Department of Fullerton, California, was established in 1904 when the city incorporated. The Fullerton Police Department currently employs 153 sworn officers and 78 civilian employees.
Over the course of the year, the temperature in Fullerton typically varies from 45Â°F to 86Â°F and is rarely below 39Â°F or above 95Â°F. The hot season lasts for 87 days, from July 2 to September 27, with an average daily high temperature above 82Â°F. The hottest day of the year is August 23, with an average high of 86Â°F and low of 66Â°F. The cool season lasts for 118 days, from November 25 to March 23, with an average daily high temperature below 71Â°F.