See controlled experiment
noun 1. any of a category of behavior-altering or addictive drugs, as heroin or cocaine, whose possession and use are restricted by law. controlled substance n. A drug or chemical substance whose possession and use are regulated under the Controlled Substances Act.
[kuh n-troh-ler] /kənˈtroʊ lər/ noun 1. an employee, often an officer, of a business firm who checks expenditures, finances, etc.; comptroller. 2. a person who regulates, directs, or restrains. 3. British Aeronautics. a dispatcher. 4. a regulating mechanism; governor. 5. Also called control unit, processor. Computers. the key component of a device, as a terminal, […]
- Controlled ventilation
controlled ventilation n. Intermittent application of positive pressure to a gas or gases in or about the airway in order to force gas into the lungs in the absence of spontaneous ventilatory efforts. Also called controlled respiration.
- Controller card
noun See adapter card