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