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

• 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。
• Nonetheless, classification by age of onset and maximum function achieved is useful for prognosis and management;
  不过，通过发病年龄和获得的最大功能分类可以用来进行预后和管理；
• The onset of this disease may resemble the prodromal period of icteric hepatitis.
  它的发病与黄疸型肝炎的前驱期相似。
• Neighbours near his home reported poultry deaths prior to his onset of symptoms.
  在他的症状出现之前，他家附近的邻居报告了禽类死亡。
• 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。
• 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。
• The sudden onset of winter caused havoc with rail and air transport
  冬天的突然降临让铁路和航空运输系统陷入混乱。
• Bleeding and diarrhea signal the onset of symptoms.
  出血和腹泻意味着症状的发作。
• 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；
• 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。