• n. [化學(xué)] 沉淀物
• vt. 使沉淀；促成；猛拋；使陷入
• vi. [化學(xué)] 沉淀；猛地落下；冷凝成為雨或雪等
• adj. 突如其來的；猛地落下的；急促的

pre-,在前，-cip,頭，詞源同cap,captain,-ate,使。即使頭在前，一頭栽下，后用于氣象術(shù)語，降水，降雪，引申物理術(shù)語沉淀，沉積，積灰，如Electrostatic Precipitator,電除塵器。

pre-,在前，-cip,頭，詞源同cap,captain,-ate,形容詞后綴。即使頭在前的，一頭栽下的，引申 詞義魯莽的，倉促的。

precipitate (v.)

"to hurl or fling down," 1520s, a back formation from precipitation or else from Latin praecipitatus, past participle of praecipitare "to throw or dive headlong," from praeceps "steep, headlong, headfirst" (see precipice). Meaning "to cause to happen, hurry the beginning of" is recorded from 1620s. Chemical sense is from 1620s; meteorological sense first attested 1863. Related: Precipitated; precipitating.

precipitate (adj.)

c. 1600, from Latin praecipitatus, past participle of praecipitare "to throw or dive headlong" (see precipitate (v.)). Meaning "hasty" is attested from 1650s. Related: Precipitately.

precipitate (n.)

1560s, probably a back formation from precipitation.

1. Adding sulphate to the solution will give a precipitate.

將硫酸鹽加入該溶液會產(chǎn)生沉淀.

來自《簡明英漢詞典》

2. A cool breeze caused a precipitate drop in the temperature.

冷風(fēng)使溫度急降.

來自《簡明英漢詞典》

3. Clouds usually precipitate as rain or snow.

云常會凝結(jié)成雨或雪.

來自《簡明英漢詞典》

4. The king was too precipitate in declaring war.

國王在宣戰(zhàn)一事上過于輕率.

來自《簡明英漢詞典》

5. It would only serve to precipitate his ruin.

它只會加速他的毀滅.

來自《現(xiàn)代漢英綜合大詞典》