单词	precipitate
释义	precipitate1 verbprecipitate2 nounprecipitate3 adjective precipitatepre‧cip‧i‧tate1 /prɪˈsɪpɪteɪt/ verb Word Origin WORD ORIGINprecipitate1 Origin: 1500-1600 Latin past participle of praecipitare, from praeceps; ➔ PRECIPICE Verb Table VERB TABLE precipitate Simple Form Present I, you, we, they precipitate he, she, it precipitates Past I, you, he, she, it, we, they precipitated Present perfect I, you, we, they have precipitated he, she, it has precipitated Past perfect I, you, he, she, it, we, they had precipitated Future I, you, he, she, it, we, they will precipitate Future perfect I, you, he, she, it, we, they will have precipitated Continuous Form Present I am precipitating he, she, it is precipitating you, we, they are precipitating Past I, he, she, it was precipitating you, we, they were precipitating Present perfect I, you, we, they have been precipitating he, she, it has been precipitating Past perfect I, you, he, she, it, we, they had been precipitating Future I, you, he, she, it, we, they will be precipitating Future perfect I, you, he, she, it, we, they will have been precipitating Examples EXAMPLES FROM OTHER DICTIONARIES An attack on the country could precipitate a world war. Both countries claimed the same area, precipitating a border war. The 1929 stock market crash precipitated the collapse of the American banking system. EXAMPLES FROM THE CORPUS Butsy was sixteen and aware that the trip had been precipitated by a crisis. For this reason, an increase in population density often precipitates a round of emigration. Ironically, in view of what had happened fifty years earlier, it was now the School's success which precipitated the next crisis. Some 592 people had been injured in the police attack on student demonstrators, which precipitated the November revolution. Tetany may be triggered by hyperventilation or precipitated by vomiting or by pregnancy and lactation. Thus differences in 18 O/ 16 O ratio may be expected between water and calcite precipitating from it. What world historical events were precipitated by incidents that occurred then? Thesaurus THESAURUS► cause to make something happen, especially something bad: · Bad weather has caused a lot of problems on the roads.· The fault caused the whole computer system to shut down. ► make somebody/something do something to cause someone to do something, or cause something to happen. Make is less formal than cause, and is the usual word to use in everyday English: · What made you decide to become a teacher?· I’m sorry, I didn’t mean to make you cry.· Gravity is the force which makes the planets move round the Sun. ► be responsible for something if someone or something is responsible for something bad, they caused it to happen: · The excessive heat was responsible for their deaths.· A small militant group was responsible for the bombing. ► bring about something to make something happen – used especially about changes or improvements: · The Internet has brought about enormous changes in society.· It’s important that we do everything we can to bring about peace. ► result in something if an action or event results in something, it makes that thing happen: · The fire resulted in the deaths of two children.· The decision is likely to result in a large number of job losses. ► lead to something to cause something to happen eventually after a period of time: · The information led to several arrests.· A poor diet in childhood can lead to health problems later in life. ► trigger if one event triggers another, it suddenly makes the second event happen: · The incident triggered a wave of violence.· An earthquake off Java’s southern coast triggered a tsunami. ► precipitate formal to make a very serious event happen very suddenly, which will affect a lot of people: · The withdrawal of foreign investment would precipitate an economic crisis.· The assassination of Archduke Franz Ferdinand precipitated World War I. Longman Language Activatorto make something bad suddenly happen► set off if someone or something sets off a fight, war etc, it makes it start happening: set off something: · The army's invasion set off a major international crisis.set something off: · Nobody knows what set the riot off. ► trigger/spark if a small action or event triggers or sparks serious trouble or changes, it causes them to happen very quickly: · Even the smallest diplomatic incident can trigger a major international conflict.· The assassination of Archduke Francis Ferdinand sparked the First World War.trigger/spark off something: · Riots, sparked off by the arrest of seven student leaders, have spread to other universities. ► precipitate formal to make something serious happen, especially more quickly than was expected: · The 1929 stock market crash precipitated the collapse of the American banking system.· Both countries claimed the same area, precipitating a border war. WORD SETS► Chemistry acetate, nounacid, nounacidic, adjectiveacidify, verbactive, adjectiveadditive, nounagent, nounalchemy, nounalcohol, nounalkali, nounalkaline, adjectiveamalgam, nounantioxidant, noun-ate, suffixatomic number, nounbase, nounbauxite, nounbeaker, nounbenzene, nounbiochemistry, nounbitumen, nounbleach, nounbond, nounbonding, nouncalcify, verbcarbohydrate, nouncarbonate, nouncarbon dioxide, nouncarbonize, verbcatalyst, nouncaustic, adjectivechain reaction, nounchemical, nounchemical, adjectivechemical reaction, nounchemist, nounchemistry, nounchlorinate, verbcitric acid, nouncombustion, nounconcentration, nouncondense, verbcontaminant, nouncontaminate, verbcontaminated, adjectivecorrode, verbcorrosion, nouncorrosive, adjectivecrucible, nouncrystal, nouncrystallize, verbcyanide, nounDDT, noundecay, verbdecay, noundecompose, verbdegrade, verbderive, verbdetoxification, noundextrose, noundioxin, noundispersion, noundissolve, verbdistill, verbeffervesce, verbeffervescent, adjectiveelectrolysis, nounelectrolyte, nounelectroplate, verbemulsify, verbemulsion, nounenzyme, nounexpand, verbfatty acid, nounferment, verbferment, nounflashback, nounflask, nounformaldehyde, nounformula, nounfructose, nounfungicide, nounfuse, verbgas, noungaseous, adjectiveglucose, noungranular, adjectivegraphite, nounhallucinogen, nounhelium, nounherbicide, nounhydrate, nouninert, adjectiveinsoluble, adjectiveinsulin, nounion, nounionize, verblactic acid, nounlimescale, nounlitmus, nounlitmus paper, nounlitmus test, nounmethane, nounmixture, nounmolecule, nounneon, nounnerve gas, nounneutralize, verbneutron, nounnitric acid, nounnucleic acid, nounnucleus, nounnutrient, nounorganic chemistry, nounosmosis, nounoxidize, verboxyacetylene, nounoxygenate, verbozone, nounpart, nounpectin, nounpesticide, nounpestle, nounpetrochemical, nounpH, nounphotosynthesis, nounplasma, nounpolyunsaturated, adjectivepotash, nounprecipitate, verbprecipitate, nounprecipitation, nounproduct, nounprussic acid, nounquicklime, nounradioactive, adjectiveradioactivity, nounradiology, nounreact, verbreaction, nounreactive, adjectivereagent, nounresidue, nounretort, nounriboflavin, nounsalt, nounsaltpetre, nounsaturate, verbsaturated, adjectivesaturation, nounsaturation point, nounsemiconductor, nounsoft, adjectivesolid, nounsolution, nounsolvent, nounstability, nounstabilizer, nounstable, adjectivestarch, nounsteam, nounsucrose, nounsulphate, nounsulphide, nounsulphur, nounsulphur dioxide, nounsulphuric acid, nounsulphurous, adjectivesurface tension, nounsuspension, nounsynthesize, verbsynthetic, adjectivetannin, nountartaric acid, nounTNT, noununstable, adjectivevalence, nounvitamin, nounvolatile, adjectivevulcanize, verbwater softener, nounwater-soluble, adjectivewater vapour, nounwetting agent, noun Collocations COLLOCATIONS FROM OTHER ENTRIES► precipitate a crisis formal (=start one)· The rising oil prices precipitated an energy crisis. COLLOCATIONS FROM THE CORPUSNOUN► collapse · And an extended payments schedule might well recover the debt more surely than strict enforcement - which might instead precipitate financial collapse.· The strains arising from insecurity can often precipitate collapse. ► crisis · A summit failure could still precipitate a new crisis.· My changing musical tastes also precipitated a small crisis in my religious development.· Ironically, in view of what had happened fifty years earlier, it was now the School's success which precipitated the next crisis.· Butsy was sixteen and aware that the trip had been precipitated by a crisis.· However, the Baudrillardian collapse of certainties has precipitated a crisis in our understanding of representation and realism.· A relatively small withdrawal of oil from the world market in October 1973 was sufficient to precipitate an acute crisis.· If they do not, the party could lose its majority in parliament, precipitating a government crisis.· Demonstrations against his policy, which took place from 18-21 April, precipitated a cabinet crisis. ► resignation · The violent communal riots of 1969 precipitated his resignation as Prime Minister in 1970.· If this was their intention, they succeeded - by precipitating his resignation. 1[transitive] formal to make something serious happen suddenly or more quickly than was expected SYN  hasten:  The riot was precipitated when four black men were arrested.► see thesaurus at cause2[intransitive, transitive + out] technical to separate a solid substance from a liquid by chemical action, or to be separated in this wayprecipitate somebody into something phrasal verb formal to force someone or something into a particular state or condition:  The drug treatment precipitated him into a depression. precipitate1 verbprecipitate2 nounprecipitate3 adjective precipitatepre‧cip‧i‧tate2 /prəˈsɪpətət/ noun [countable] Examples EXAMPLES FROM THE CORPUS I producing fixed capital, there would be a precipitate decline in those sectors. Sedimentary rocks show stratification and form by settling of erosional debris and chemical precipitates. This inhibition is caused by the formation of insoluble precipitates of calcium, phosphate, and bile acid micelles. When the solution becomes turbid the mixture is warmed until the precipitate dissolves. word sets WORD SETS► Chemistry acetate, nounacid, nounacidic, adjectiveacidify, verbactive, adjectiveadditive, nounagent, nounalchemy, nounalcohol, nounalkali, nounalkaline, adjectiveamalgam, nounantioxidant, noun-ate, suffixatomic number, nounbase, nounbauxite, nounbeaker, nounbenzene, nounbiochemistry, nounbitumen, nounbleach, nounbond, nounbonding, nouncalcify, verbcarbohydrate, nouncarbonate, nouncarbon dioxide, nouncarbonize, verbcatalyst, nouncaustic, adjectivechain reaction, nounchemical, nounchemical, adjectivechemical reaction, nounchemist, nounchemistry, nounchlorinate, verbcitric acid, nouncombustion, nounconcentration, nouncondense, verbcontaminant, nouncontaminate, verbcontaminated, adjectivecorrode, verbcorrosion, nouncorrosive, adjectivecrucible, nouncrystal, nouncrystallize, verbcyanide, nounDDT, noundecay, verbdecay, noundecompose, verbdegrade, verbderive, verbdetoxification, noundextrose, noundioxin, noundispersion, noundissolve, verbdistill, verbeffervesce, verbeffervescent, adjectiveelectrolysis, nounelectrolyte, nounelectroplate, verbemulsify, verbemulsion, nounenzyme, nounexpand, verbfatty acid, nounferment, verbferment, nounflashback, nounflask, nounformaldehyde, nounformula, nounfructose, nounfungicide, nounfuse, verbgas, noungaseous, adjectiveglucose, noungranular, adjectivegraphite, nounhallucinogen, nounhelium, nounherbicide, nounhydrate, nouninert, adjectiveinsoluble, adjectiveinsulin, nounion, nounionize, verblactic acid, nounlimescale, nounlitmus, nounlitmus paper, nounlitmus test, nounmethane, nounmixture, nounmolecule, nounneon, nounnerve gas, nounneutralize, verbneutron, nounnitric acid, nounnucleic acid, nounnucleus, nounnutrient, nounorganic chemistry, nounosmosis, nounoxidize, verboxyacetylene, nounoxygenate, verbozone, nounpart, nounpectin, nounpesticide, nounpestle, nounpetrochemical, nounpH, nounphotosynthesis, nounplasma, nounpolyunsaturated, adjectivepotash, nounprecipitate, verbprecipitate, nounprecipitation, nounproduct, nounprussic acid, nounquicklime, nounradioactive, adjectiveradioactivity, nounradiology, nounreact, verbreaction, nounreactive, adjectivereagent, nounresidue, nounretort, nounriboflavin, nounsalt, nounsaltpetre, nounsaturate, verbsaturated, adjectivesaturation, nounsaturation point, nounsemiconductor, nounsoft, adjectivesolid, nounsolution, nounsolvent, nounstability, nounstabilizer, nounstable, adjectivestarch, nounsteam, nounsucrose, nounsulphate, nounsulphide, nounsulphur, nounsulphur dioxide, nounsulphuric acid, nounsulphurous, adjectivesurface tension, nounsuspension, nounsynthesize, verbsynthetic, adjectivetannin, nountartaric acid, nounTNT, noununstable, adjectivevalence, nounvitamin, nounvolatile, adjectivevulcanize, verbwater softener, nounwater-soluble, adjectivewater vapour, nounwetting agent, noun Collocations COLLOCATIONS FROM OTHER ENTRIES► precipitate a crisis formal (=start one)· The rising oil prices precipitated an energy crisis. technical a solid substance that has been chemically separated from a liquid precipitate1 verbprecipitate2 nounprecipitate3 adjective precipitateprecipitate3 adjective formal Examples EXAMPLES FROM THE CORPUS I have much sympathy with those who warn against precipitate novelty in the food industry. Collocations COLLOCATIONS FROM OTHER ENTRIES► precipitate a crisis formal (=start one)· The rising oil prices precipitated an energy crisis. happening or done too quickly, and not thought about carefully SYN  hasty:  a precipitate decision—precipitately adverb
随便看	regift regime regime change regimen regiment regimental regimentation region regional regionalism regionally register Registered Nurse registered office registered post register office registrar registration registration number registry registry office regress regression regressive regressive tax

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