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1. The quantity of water falling to earth at a specific place within a specified period of time
   "the storm brought several inches of precipitation"
    
2. The process of forming a chemical precipitate
    
3. The falling to earth of any form of water (rain, snow, hail, sleet or mist)
   - downfall
    
4. The act of casting down or falling headlong from a height
    
5. An unexpected acceleration or hastening
   "he is responsible for the precipitation of his own demise"
    
6. Overly eager speed (and possible carelessness)
   "he soon regretted his precipitation";
   - haste, hastiness, hurry, hurriedness

Derived forms: precipitations

Type of: acceleration, atmospheric condition, chemical action, chemical change, chemical process, conditions, drop, fall, fastness, indefinite quantity, speed, swiftness, weather, weather condition

Encyclopedia: Precipitation