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say it: pri-sip-i-TAY-shuhn
precipitation is a noun meaning "the quantity of water falling to earth at a specific place within a specified period of time". It carries 6 recorded senses.
the quantity of water falling to earth at a specific place within a specified period of time
“the storm brought several inches of precipitation”
the process of forming a chemical precipitate
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
the act of casting down or falling headlong from a height
an unexpected acceleration or hastening
“he is responsible for the precipitation of his own demise”
overly eager speed (and possible carelessness)
“he soon regretted his haste”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for precipitation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.