Oxford Dictionary English

    precipitation

    noun
    noun
    BrE BrE//prɪˌsɪpɪˈteɪʃn//
    ; NAmE NAmE//prɪˌsɪpɪˈteɪʃn//
    Rain
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  1. 1[uncountable] (specialist) rain, snow, etc. that falls; the amount of this that falls There is heavy precipitation in some parts of the country. Acid precipitation may cause a reduction in forest productivity. an increase in annual precipitation Annual precipitation ranges from 500 to 2 200 mm. In these areas precipitation was formerly too low to support growth. Wordfinderraindownpour, drought, flash flood, monsoon, precipitation, puddle, rain, shelter, shower, squall See related entries: Rain
  2. 2 [uncountable, countable] (chemistry) a chemical process in which solid material is separated from a liquid calcium phosphate precipitation
    3.  Word Originlate Middle English (denoting the action of falling or throwing down): from Latin praecipitatio(n-), from praecipitare ‘throw down or headlong’, from praeceps, praecip(it)- ‘headlong’, from prae ‘before’ + caput ‘head’.
See precipitation in the Oxford Learner's Dictionary of Academic EnglishSee precipitation in the Oxford Advanced American Dictionary
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