Precipitation is any meteorological phenomenon featuring water falling from the clouds, such as rain, snow, or hail.
Precipitation may also refer to: Alkaline precipitation, meteorological precipitation characterized by high alkalinity Precipitation (chemistry), condensation of a solid from a solution during a chemical reaction: Ammonium sulfate precipitation, a method of purifying proteins Precipitation hardening, a method used to strengthen malleable materials Protein precipitation, a method of separating contaminants from biological products For precipitation resulting from the denaturation of proteins, see coagulation Ethanol precipitation, a method of concentrating DNA Precipitation (horse), a racehorse Electron precipitation, an atmospheric phenomenon that occurs when previously trapped electrons enter the Earth's atmosphere
See also Coprecipitation Quantitative precipitation forecast Precipitate (disambiguation)