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

• Together we had watched the advance and onset of world disaster.
  我们曾一同注意观察世界灾难的发生和发展。
• I feel a sudden onset of clarity, bartok.
  我突然想清楚了一件事，巴托克。
• On the basis of its onset, constipation may be classified as acute or chronic.
  根据病发情况，便秘可分急性和慢性两种。
• We now think that it may not be the amyloid fiber filaments that cause neuron death and disease onset.
  我们现在认为可能并不是淀粉样纤维细丝导致神经元死亡和疾病的发作。
• There are multiple factors that might influence the onset and severity of pulmonary hypertension in IPF.
  有很多因素可影响IPF过程中肺动脉高压的出现和严重度。
• Bleeding and diarrhea signal the onset of symptoms.
  出血和腹泻意味着症状的发作。
• 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。
• 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。
• Deaths in chickens near his home were reported in the week prior to symptom onset.
  在症状出现之前一周，曾报告了他家附近的鸡死亡。
• Objective to explore the relationship between time of AF onset and clinical prognosis in acute period of ami.
  目的探讨急性心肌梗塞（ami）急性期间，房颤（af）发作时间与临床预后之间的关系。