英语词汇“precipitation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

precipitation

/prɪˌsɪpɪˈteɪʃ(ə)n

noun [mass noun]

1 Chemistry The action or process of precipitating a substance from a solution.Acidic proteins are known to trigger carbonate precipitation via matrix mediated processes in microbialites....

Cell debris was removed by centrifugation, and the supernatant was fractionated by ammonium sulfate precipitation.
The most common type of substitution reactions of compounds of metals is ion exchange accompanied by precipitation.

2Rain, snow, sleet, or hail that falls to or condenses on the ground: these convective processes produce cloud and precipitation [count noun]: the heavy post-monsoon precipitations...

In places where the warmer air extends to the ground, the precipitation will fall as rain.
Acid rain refers to any precipitation, rain or snow, that's more acid than ordinary rain or snow.
The end of August could lead to earlier nights and the odd spell of seasonal weather mixed in with unusual conditions, with precipitation likely where rain falls.

3 archaic The fact or quality of acting suddenly and rashly: Cora was already regretting her precipitation

Origin

Late Middle English (denoting the action of falling or throwing down): from Latin praecipitatio(n-), from praecipitare 'throw down or headlong' (see precipitate).

单词	precipitation
释义	precipitation /prɪˌsɪpɪˈteɪʃ(ə)n / noun [mass noun] 1 Chemistry The action or process of precipitating a substance from a solution.Acidic proteins are known to trigger carbonate precipitation via matrix mediated processes in microbialites.... Cell debris was removed by centrifugation, and the supernatant was fractionated by ammonium sulfate precipitation. The most common type of substitution reactions of compounds of metals is ion exchange accompanied by precipitation. 2Rain, snow, sleet, or hail that falls to or condenses on the ground: these convective processes produce cloud and precipitation [count noun]: the heavy post-monsoon precipitations... In places where the warmer air extends to the ground, the precipitation will fall as rain. Acid rain refers to any precipitation, rain or snow, that's more acid than ordinary rain or snow. The end of August could lead to earlier nights and the odd spell of seasonal weather mixed in with unusual conditions, with precipitation likely where rain falls. 3 archaic The fact or quality of acting suddenly and rashly: Cora was already regretting her precipitation Origin Late Middle English (denoting the action of falling or throwing down): from Latin praecipitatio(n-), from praecipitare 'throw down or headlong' (see precipitate).
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