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[kuh n-den-ser] /kənˈdɛn sər/
a person or thing that condenses.
an apparatus for condensing.
any device for reducing gases or vapors to liquid or solid form.
Optics. a lens or combination of lenses that gathers and concentrates light in a specified direction, often used to direct light onto the projection lens in a projection system.
Electricity, capacitor.
Origin of condenser
1680-90; condense + -er1
Related forms
intercondenser, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for condenser
  • For example, a steam engine that has more heat applied to its boiler has more water forming in its condenser.
  • The mixture would be heated and drawn up through a condenser tube, which was surrounded by cold water.
  • The flask is rotated to prevent the liquid from violently bumping material over to the condenser side.
  • Clean the condenser coils on your refrigerator annually and check door seals to ensure they are airtight.
  • Cooling towers remove heat from condenser water via direct-contact evaporation in a cool air stream.
  • The condenser plays this role by rejecting the necessary heat into the cold sink: the surrounding environment.
  • Monitor outdoor conditions and reset the condenser-water temperature accordingly.
  • The unused steam is exhausted in to the condenser where it condensed into water.
  • If a facility has control equipment, such as a condenser, the emissions can be multiplied by the control factor.
  • The unused steam is exhausted to the condenser where it is condensed into water.
British Dictionary definitions for condenser


  1. an apparatus for reducing gases to their liquid or solid form by the abstraction of heat
  2. a device for abstracting heat, as in a refrigeration unit
a lens that concentrates light into a small area
another name for capacitor
a person or device that condenses
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for condenser

1680s, agent noun from condense. Given a wide variety of technical uses in late 18c. and 19c.

Online Etymology Dictionary, © 2010 Douglas Harper
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condenser in Medicine

condenser con·dens·er (kən-děn'sər)

  1. An apparatus for cooling a gas in order to convert it to to a liquid.

  2. An instrument for packing a material into a cavity of a tooth.

  3. The simple or compound lens on a microscope that is used to focus light on the specimen under observation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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condenser in Science
  1. An apparatus used to condense vapor, usually using cooling or pressurization.

  2. See capacitor.

  3. A mirror, lens, or combination of lenses used to gather light and direct it upon an object or through a projection lens.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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