Oscillation in a device called an oscillator is usually a back and forth motion over a central neutral point, created by changes in energy. In a pendulum-driven clock, for example, the oscillation is the back and forth movement of the pendulum.
Legal Definition of administrative law judge. : an officer in a government agency with quasi-judicial functions including conducting hearings, making findings of fact, and making recommendations for resolution of disputes concerning the agency's actions âcalled also administrative judge.
An agency that is part of the executive branch, an independent agency, or an independent regulatory agency (for example, the Federal Trade Commission, the Securities and Exchange Commission, and the Federal Communications Commission). State and local governments also have administrative agencies.