Definition of condenser

• n. - One who, or that which, condenses.
• n. - An instrument for condensing air or other elastic fluids, consisting of a cylinder having a movable piston to force the air into a receiver, and a valve to prevent its escape.
• n. - An instrument for concentrating electricity by the effect of induction between conducting plates separated by a nonconducting plate.
• n. - A lens or mirror, usually of short focal distance, used to concentrate light upon an object.
• n. - An apparatus for receiving and condensing the volatile products of distillation to a liquid or solid form, by cooling.
• n. - An apparatus, separate from the cylinder, in which the exhaust steam is condensed by the action of cold water or air. See Illust. of Steam engine.