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

• 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。
• The ravages of this condition I observed; the onset of her mental instability I only felt.
  我目睹了疾病的摧残，但只能凭感觉猜想她精神刚开始不稳定时的状况。
• 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。
• A juvenile between the onset of puberty and maturity.
  处于青春期和成熟期的青少年。
• 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。
• 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；
• Conclusion The onset of BPPV may relate to ischemic internal ear but is not relevant with gender and age.
  结论内耳缺血可能与BPPV发病有关，但BPPV发病在不同性别、年龄之间差异无显著性。
• 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。
• 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。
• 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。