Con-dĕns'er, n.
n. 1. One who, or that which, condenses.
Sense 2. (Physics.) (a.) 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. (b.) An instrument for concentrating electricity by the effect of induction between conducting plates separated by a thin, non-conducting plate.
Sense 3. A vessel, or part of machinery, in which aqueous or spirituous vapors are reduced to a liquid form. [See Illust. of Steam-engine.]
Surface condenser, an apparatus for condensing steam, especially in the exhauster of a steam-engine, by bringing it into contact with metallic surfaces cooled on the outside by water or air. See INJECTION and CONDENSER.