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

• 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。
• 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。
• 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。
• He went to see a doctor at the onset of a fever.
  他开始发烧时便去看医生了。
• 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。
• 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。
• I feel a sudden onset of clarity, bartok.
  我突然想清楚了一件事，巴托克。
• 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；
• Bleeding and diarrhea signal the onset of symptoms.
  出血和腹泻意味着症状的发作。
• 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。