释义 |
precipitant /prɪˈsɪpɪt(ə)nt /noun1A cause of a particular action or event: the immediate precipitants of the conflict...- Guided by these principles, he made several criticisms of the police as both background to and immediate precipitants of the disorders.
- Stress itself could be a possible precipitant of urticaria.
- Last but not least, one should look for stress as a precipitant.
1.1chiefly Psychology A cause or stimulus which precipitates a particular condition: depression may be a precipitant in many cases...- Cognitive models focus on maladaptive or biased thought processes, whereas interpersonal models focus on social difficulties and stressful interpersonal environments as precipitants of psychopathology.
- While it is a statistical certainty that some Ecstasy users will present for psychiatric services, the current available data shed little light on whether Ecstasy use is a precipitant, modifier or consequence of psychiatric illness.
- Most reported interventions have begun with assessment of seizure precipitants, looking particularly for emotionally based triggers for seizures.
2 Chemistry A substance that causes the precipitation of a specified substance: a protein precipitant...- The model protein lysozyme in the presence of the precipitant, sodium chloride, was used in this study.
- Under real crystallization conditions, potential phase perturbants, such as proteins, native membrane lipids, detergents, and precipitants, will be present.
- The precipitants with protein A-Sepharose were divided into three equal parts, one for the kinase assay at 25°, one for the kinase assay at 37°, and one for the Western blotting.
Derivativesprecipitance /prɪˈsɪpɪt(ə)ns/ noun ...- Their precipitance (which would create the tribes of Moabites and Ammonites) seems undue, since Lot's wife, recently turned into a pillar of salt, stands just outside the cave.
- Immediate precipitance of his violent acts have included frustration at his demands not being met by his multi-disciplinary team.
OriginEarly 17th century: from obsolete French précipitant 'precipitating', present participle of précipiter. |