(1) (chemistry, physics) The process or the state of changing a substance from gas to liquid or solid
(2) (chemistry) A chemical reaction in which the joining of two organic compounds results in the production and release of water, ammonia, simple alcohol, or other molecules
(3) (molecular biology) The process of compacting molecules, as by DNA condensation
(4) (dentistry) A technique or process of removing water to ensure that the crown or dental filling is firm, thoroughly compacted, and with minimal void space
Condensation is the process resulting in the formation of fog, dew, clouds, and other forms of atmospheric vapour. Many living things derive their water requirement mainly from water vapour produced through condensation.