The act or process of condensing or of being condensed; the state of being condensed. [1913 Webster]
"He [Goldsmith] was a great and perhaps an unequaled master of the arts of selection and condensation." [1913 Webster]
The act or process of reducing, by depression of temperature or increase of pressure, etc., to another and denser form, as gas to the condition of a liquid or steam to water. [1913 Webster]
A rearrangement or concentration of the different constituents of one or more substances into a distinct and definite compound of greater complexity and molecular weight, often resulting in an increase of density, as the condensation of oxygen into ozone, or of acetone into mesitylene. [1913 Webster]

Condensation product (Chem.), a substance obtained by the polymerization of one substance, or by the union of two or more, with or without separation of some unimportant side products. -- Surface condensation, the system of condensing steam by contact with cold metallic surfaces, in distinction from condensation by the injection of cold water.

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OXFORD DICTIONARY

condensation, n.
1 the act of condensing.
2 any condensed material (esp. water on a cold surface).
3 an abridgement.
4 Chem. the combination of molecules with the elimination of water or other small molecules.

Idiom

condensation trail = vapour trail.

Etymology

LL condensatio (as condense)

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THESAURUS

condensation

abbreviation, abbreviature, abrege, abridgment, abstract, accelerando, acceleration, accretion, adherence, adhesion, agglomeration, agglutination, aggravation, apocope, astriction, astringency, beefing-up, blowing up, blowup, bottleneck, breviary, brief, capsule, cervix, circumscription, cling, clinging, clotting, clumping, clustering, coagulation, coarctation, coherence, cohesion, cohesiveness, compactedness, compaction, compend, compression, compressure, concentration, concretion, condensed version, congealment, congelation, conglobation, conglomeration, consolidation, conspectus, constriction, constringency, contraction, contracture, curtailment, decrease, deepening, densification, digest, diminuendo, distillation, draft, dribble, drip, dripping, drop, elision, ellipsis, enhancement, epitome, exacerbation, exaggeration, explosion, foreshortening, hardening, head, heating-up, heightening, hourglass, hourglass figure, information explosion, inseparability, intensification, isthmus, junction, knitting, leaching, lixiviation, magnification, narrow place, narrowing, neck, outline, overview, pandect, percolation, pickup, population explosion, precis, puckering, pursing, recap, recapitulation, redoubling, reduction, reinforcement, retrenchment, review, rubric, seepage, seeping, set, shortened version, shortening, skeleton, sketch, solidification, speedup, spurtle, step-up, sticking, stranglement, strangulation, strengthening, striction, stricture, summary, summation, survey, sweating, syllabus, syncope, synopsis, systole, telescoping, thumbnail sketch, tightening, topical outline, trickle, tricklet, truncation, wasp waist, wrinkling

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ROGET THESAURUS

condensation

Contraction

N contraction, reduction, diminution, decrease of size, defalcation, decrement, lessening, shrinking, compaction, tabes, collapse, emaciation, attenuation, tabefaction, consumption, marasmus, atrophy, systole, neck, hourglass, condensation, compression, compactness, compendium, squeezing, strangulation, corrugation, astringency, astringents, sclerotics, contractility, compressibility, coarctation, inferiority in size, contracting, astringent, shrunk, contracted, strangulated, tabid, wizened, stunted, waning, neap, compact, unexpanded &c (expand), contractile, compressible, smaller &c (small).

Density

N density, solidity, solidness, impenetrability, impermeability, incompressibility, imporosity, cohesion, constipation, consistence, spissitude, specific gravity, hydrometer, areometer, condensation, caseation, solidation, solidification, consolidation, concretion, coagulation, petrification, crystallization, precipitation, deposit, precipitate, inspissation, gelation, thickening, indivisibility, indiscerptibility, insolubility, indissolvableness, solid body, mass, block, knot, lump, concretion, concrete, conglomerate, cake, clot, stone, curd, coagulum, bone, gristle, cartilage, casein, crassamentum, legumin, superdense matter, condensed states of matter, dwarf star, neutron star, dense, solid, solidified, caseous, pukka, coherent, cohesive, compact, close, serried, thickset, substantial, massive, lumpish, impenetrable, impermeable, nonporous, imporous, incompressible, constipated, concrete, knotted, knotty, gnarled, crystalline, crystallizable, thick, grumous, stuffy, undissolved, unmelted, unliquefied, unthawed, indivisible, indiscerptible, infrangible, indissolvable, indissoluble, insoluble, infusible.

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