Definition of condensation in US English:



  • 1Water which collects as droplets on a cold surface when humid air is in contact with it.

    • ‘Reduce the potential for condensation on cold surfaces by adding insulation.’
    • ‘In the case of a condensation problem, you should have your basement insulated with some dry-lined, insulated plasterboard.’
    • ‘Also known as hydrosols, floral waters are the condensation that is collected after plants are steamed to extract their essential oils.’
    • ‘In the winter, condensation on cold walls encourages mold growth, but even thick insulation can be invaded if vapor barriers in exterior walls are not effective.’
    • ‘The conditions causing mold (such as water leaks, condensation, infiltration, or flooding) should be corrected to prevent mold from growing.’
    • ‘Don't have a bath or shower before viewers arrive as the room will be steamy and it might give the impression that you have a condensation problem.’
    • ‘Typically, plates are inverted during incubation to prevent condensation droplets from falling onto the surface of the agar.’
    • ‘Evoke felt the cold also as condensation from the cold rose up from the wet ground.’
    • ‘The second is that as it is exposed to the warmer air of the room it gains a featherlight condensation, the gentlest acknowledgement of its chill freshness.’
    • ‘He wiped away a layer of condensation from the surface, all cold and slippery, then peered into his pores.’
    • ‘The ceiling fans are on, the droplets of condensation are running in rivulets down our lime sodas, the table is laid.’
    • ‘It can help to reduce building maintenance requirements by eliminating or drastically reducing condensation on the interior surfaces of windows, particularly in cold climates.’
    • ‘Thinking back, I recalled droplets of condensation.’
    • ‘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.’
    • ‘Floaters often look like cobwebs, worms, rings, dots, or specks, which are actually condensations in the vitreous humor of the eye.’
    • ‘Making his way to one of the deep blue glass pillars that adorned the laboratory, he gently swept some beads of condensation off the surface.’
    • ‘Are windows and interior surfaces free of condensation?’
    • ‘Since fans have to be installed inside to evaporate water condensation, a lot of noise is caused, which is more difficult to resolve than dripping.’
    • ‘Oh, how wondrous it looked to him; the red and yellow striped umbrella calling out his hunger, with pretzels and chips suspended in a case on the cart, sodas and water sweating beads of condensation.’
    • ‘If the moist air can't reach the cool surfaces, it won't release water as condensation.’
    moisture, water droplets, steam
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  • 2The conversion of a vapor or gas to a liquid.

    • ‘In cold climates, the condensation and frosting of water vapor when warm exhaust air meets subzero outdoor temperatures is a concern.’
    • ‘And in top-quality work, both pipes should be insulated, hot water to minimize heat loss and cold water to prevent surface condensation.’
    • ‘When the temperature drops below what is termed the dew-point, there is a net condensation and a cloud formation can occur.’
    • ‘The opposite of evaporation is condensation where vapor changes to a liquid.’
    • ‘If more molecules are leaving the gas and becoming liquid then the process is condensation.’
    • ‘By repeating vaporization and condensation, individual components in the solution can be recovered in a pure state.’
    • ‘The melting and freezing point of a liquid are always the same temperature, the boiling point and the condensation point are also at a characteristic temperature.’
    • ‘A gas changing to a liquid is condensation and a liquid changing to a solid is freezing.’
    • ‘Keep in mind, though, that some basement moisture problems stem from condensation rather than leakage, which will be discussed later in this guide.’
    • ‘Avoid condensation of water on fruit after it is removed from cold storage.’
    • ‘There was probably a lot of sulphur, sulphuric acid, a lot of carbonation and condensation, all very damaging to the concrete.’
    • ‘The cuvettes were connected to a gas analyser by copper tubes that were warmed by electric cables to avoid condensation of water vapour.’
    • ‘They have shown that Mars today has a unique climate that is dominated by the condensation and sublimation of its major atmospheric constituent, carbon dioxide.’
    • ‘If the air cools below this point it is supersaturated with water, and condensation occurs to restore the balance.’
    • ‘The condensation is generally activated from the vapour phase of the material.’
    • ‘While oil with just 300 hours of use appears to be in good condition, it can contain moisture picked up via condensation caused by temperature fluctuations.’
    • ‘The resulting upward motion at fronts causes cooling of the air, condensation of water vapour to produce clouds, and eventually precipitation.’
    • ‘If the air parcel is cooled, the gaseous water molecules slow down and take a liquid form, so condensation dominates.’
    • ‘The size of both tubes must be equal because the humidity of the air is changing constantly and so condensation of moisture on the tubes is different.’
    • ‘If warm water affects evaporation, let's see if cooling water vapor affects condensation!’
    precipitation, liquefaction, deliquescence
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    1. 2.1Chemistry A reaction in which two molecules combine to form a larger molecule, producing a small molecule such as H₂O as a byproduct.
      • ‘Imide resins are prepared by the condensation of an anhydride and diamine, via a polyamic acid intermediate.’
      • ‘The first synthetic polymer produced by a condensation reaction was Bakelite.’
      • ‘The simplest peptide, a dipeptide, contains a single peptide bond formed by the condensation of the carboxyl group of one amino acid with the amino group of the second with the concomitant elimination of water.’
      • ‘Peptide bond formation is a condensation reaction leading to the polymerization of amino acids into peptides and proteins.’
      • ‘These molecules are synthesized by the condensation of CDP-diacylglycerol with PG.’
    2. 2.2Psychology The fusion of two or more images, ideas, or symbolic meanings into a single composite or new image, as a primary process in unconscious thought exemplified in dreams.
      • ‘The work of condensation in dreams is seen at its clearest when it handles words and names.’
      • ‘Like all symbioses it was bound together and sustained by the primary processes of uncritical displacement and condensation.’
      • ‘They are the products of the same mental processes that produce dreams - such as symbolization and the condensation of multiple meanings into one picture.’
      • ‘As Jones pointed out, any symbol is the result of psychological condensation.’
      • ‘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.’
  • 3A concise version of something, especially a text.

    ‘a readable condensation of the recent literature’
    • ‘It's online to subscribers only but it is essentially a severe condensation of my monograph on the subject.’
    • ‘We have one other major article, a condensation of a piece by Dave Snowden from the Journal of Knowledge Management.’
    • ‘Where were the unpredictable twists of idea and phrase that poetic condensation conjures up?’
    • ‘So I offer the following condensations on the basis that they'll either inspire trips to the bookshop, or save you the bother.’
    • ‘Anticipating the visual world of television, it surpassed even the condensations of the news weeklies and digest by summarizing in photographs instead of in text.’
    • ‘He's a condensation of the many things that are broken in people - the dull, agonizing itches that persist deep within us.’
    • ‘The second, ‘Of the Passions', was a condensation and revision of the second book of the Treatise.’
    • ‘The stag films, promotional and training material, B-movie condensations, countdown leaders, newsreels and intertitles he uses operate as commentary rather than as entertainment.’
    • ‘He has written about a hundred short stories, many articles, condensations of Ramayan and Mahabharat, Chalantika, a much-used Bengali dictionary and translated the Gita and Meghdoot.’
    • ‘The image is a heavily marked condensation of motifs concerned with repressed sexuality, knowledge, visibility and vision, intellectuality, and desire.’
    • ‘And I've just discovered that this cluster is also referred to as a condensation, as in ‘a small local cluster of galaxies that condensed out of the general expansion of the Universe’.’
    • ‘Death prevented this and Oberon has steadily resisted improvement at a variety of hands; the most satisfactory version does seem to be a condensation of the composer's original.’
    • ‘The house is a condensation of the past, representing how this city has developed from a century ago to the present.’
    abridgement, summary, synopsis, precis, abstract, digest, encapsulation
    shortening, abridgement, abbreviation, cutting, summarization
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Early 17th century: from late Latin condensatio(n-), from condensare ‘press close together’ (see condense).