General: The act of making more dense or compact.
Physics: The physical process by which a vapor becomes a liquid; the opposite
of → evaporation. → sublimation;
→ deposition.
Acoustics: The ratio of the instantaneous excess of density to the normal
density at a point in a medium transmitting longitudinal sound waves.
→ rarefaction.
Chemistry: Chemical change in which two or more molecules react with the
elimination of water or of some other simple substance.
Meteorology: Any process by which water vapor changes to dew, fog, or cloud.
See also: Verbal noun from → condense; → -tion.
