onset

英 [ˈɒnset]

美 [ˈɑːnset]

n.  开端，发生，肇始(尤指不快的事件)

TOEFLIELTSGRETEM8医学

Collins.1 / BNC.6461 / COCA.7094

牛津词典

noun

• 开端，发生，肇始（尤指不快的事件）
  the beginning of sth, especially sth unpleasant
  1. the onset of disease/old age/winter
     疾病的发作；老年的开始；冬天的来临

柯林斯词典

• N-SING （尤指不快之事的）开始，开端，肇始
  The onset ofsomething is the beginning of it, used especially to refer to something unpleasant.
  1. Most of the passes have been closed with the onset of winter...
     冬天来临，大部分关口均已关闭。
  2. With the onset of war, oil prices climbed past $30 a barrel.
     战争一爆发，油价就攀过了每桶30美元。

英英释义

noun

• (military) an offensive against an enemy (using weapons)
  1. the attack began at dawn
  Synonym:attackonslaughtonrush
• the beginning or early stages
  1. the onset of pneumonia
  Synonym:oncoming

双语例句

• Bleeding and diarrhea signal the onset of symptoms.
  出血和腹泻意味着症状的发作。
• The onset of the disease is usually gradual, starting with fever, general weakness, and malaise.
  该病通常为渐进性发病，开始时出现发烧、全身虚弱和不适。
• The disappearance of monomer droplets at the onset of interval III can be observed visually.
  在阶段Ⅲ开始时就可以目视观察到单体液滴的消失。
• Objective: To explore the pathogenesis, diagnosis and treatment of delayed onset diabetes insipidus after traumatic brain injury.
  目的：探讨脑外伤后迟发性尿崩的发病机制、诊断和治疗。
• The patient may or may not notice these symptoms during the onset of the vertigo.
  眩晕发作时，病人可能感觉到、也可能感觉不到耳鸣和听力下降。
• With the onset of war, oil prices climbed past$ 30 a barrel.
  战争一爆发，油价就攀过了每桶30美元。
• Conclusion Cause, age of onset chronic renal failure, ultrafiltration, PTH hypotension-related.
  结论导致慢性肾衰的原发病、年龄、超滤量、PTH与低血压的发生有关。
• Vomiting is normal at the onset of labor, but persistent vomiting may be a sign of illness.
  呕吐在分娩过程中是正常现象，不过持续性的呕吐有可能会是疾病的表征。
• Most of the passes have been closed with the onset of winter
  冬天来临，大部分关口均已关闭。
• If you have new onset stomach problem, this is a very likely diagnosis.
  如果你有新的胃部症状，这是一个非常有用的诊断方式。