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

• Symptoms of acute onset suggest a vascular cause or seizure;
  急性起病的症状，提示血管性或为癫痫发作；
• 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。
• 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。
• 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。
• In the traditional societies of Africa, the onset of puberty marked the change from child to adult.
  在非洲的传统社会中，青春期一开始就标志着从孩子变成成年人了。
• 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。
• Methods The data of49 cases of early onset severe preeclampsia were retrospectively analyzed.
  方法对49例早发型重度子痫前期患者进行回顾性分析。
• A juvenile between the onset of puberty and maturity.
  处于青春期和成熟期的青少年。
• 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。
• 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。