Definition of condensation in English:


Line breaks: con|den|sa¦tion
Pronunciation: /kɒndɛnˈseɪʃ(ə)n


[mass noun]
  • 1Water which collects as droplets on a cold surface when humid air is in contact with it: the inside of the cab steamed up with condensation
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    • Reduce the potential for condensation on cold surfaces by adding insulation.
    • If the warm packages are handled with unsterile hands or placed on cold surfaces where condensation may form, the sterility of the package may be compromised.
    • It can help to reduce building maintenance requirements by eliminating or drastically reducing condensation on the interior surfaces of windows, particularly in cold climates.
    moisture, water droplets, steam
  • 2The conversion of a vapour or gas to a liquid: the cloud is caused by condensation in the air
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    • If the air parcel is cooled, the gaseous water molecules slow down and take a liquid form, so condensation dominates.
    • A gas changing to a liquid is condensation and a liquid changing to a solid is freezing.
    • There was probably a lot of sulphur, sulphuric acid, a lot of carbonation and condensation, all very damaging to the concrete.
  • 2.1 (also condensation reaction) [count noun] Chemistry A reaction in which two molecules combine to form a larger molecule, producing a small molecule such as H2O as a by-product.
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    • The first synthetic polymer produced by a condensation reaction was Bakelite.
    • Peptide bond formation is a condensation reaction leading to the polymerization of amino acids into peptides and proteins.
    • Imide resins are prepared by the condensation of an anhydride and diamine, via a polyamic acid intermediate.
  • 2.2 Psychology The fusion of two or more images or ideas into a single composite or new image, as a primary process in unconscious thought exemplified in dreams.
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    • Freud analyses what he calls the technique of jokes, and points out that some of the mechanisms employed are indeed to be found in dreams; in particular, condensation, and the substitution of one word for another.
    • As Jones pointed out, any symbol is the result of psychological condensation.
    • The work of condensation in dreams is seen at its clearest when it handles words and names.


early 17th century: from late Latin condensatio(n-), from condensare 'press close together' (see condense).

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