precursor

英 [priˈkɜːsə(r)]

美 [priˈkɜːrsər]

n.  先驱; 先锋; 前身

复数：precursors　

TOEFLGRE化学

Collins.1 / BNC.10361 / COCA.9664

牛津词典

noun

• 先驱；先锋；前身
  a person or thing that comes before sb/sth similar and that leads to or influences its development

柯林斯词典

• N-COUNT 先驱；先锋；前身
  Aprecursorof something is a similar thing that happened or existed before it, often something which led to the existence or development of that thing.
  1. Real tennis, an ancient precursor of the modern game, originated in the eleventh century...
     室内网球，现代网球运动的古老前身，起源于11世纪。
  2. He said that the deal should not be seen as a precursor to a merger.
     他说该笔交易不应该被看作是合并的前兆。

英英释义

noun

• something that precedes and indicates the approach of something or someone
  Synonym:harbingerforerunnerpredecessorherald
• a person who goes before or announces the coming of another
  Synonym:forerunner
• a substance from which another substance is formed (especially by a metabolic reaction)

双语例句

• Based on studies of precursor events and unusual animal behavior, a warning was issued by local authorities.
  当地政府根据震前先兆与动物的反常行为，发出了地震预警。
• In this way, it's sort of a precursor to Apple's new GarageBand application.
  这样，它成为苹果公司的新GarageBand应用程序的先驱。
• He said that the deal should not be seen as a precursor to a merger.
  他说该笔交易不应该被看作是合并的前兆。
• Hobbes is a precursor of modern positivism and analytical jurisprudence.
  霍布斯是现代实证主义法学和分析法学的先驱。
• Comparing the ratio of testosterone to epitestosterone can then indicate whether testosterone or a precursor has been taken.
  因此测定睾酮与表睾酮的比例，能够反映出（运动员）是否服用了睾酮或者它的前体药物。
• Small cell lung cancer is neuroendocrine neoplasm and origins from apud ( amine precursor uptake decarboxylation) cell.
  小细胞肺癌是神经内分泌肿瘤，起源于apud（胺前体摄取脱羧化）细胞。
• Real tennis, an ancient precursor of the modern game, originated in the eleventh century
  室内网球，现代网球运动的古老前身，起源于11世纪。
• IDOL can even mediate the degradation of the receptor precursor in the endoplasmic reticulum.
  甚至，IDOL能调解内质网中受体前体的降解。
• This was a necessary precursor to the development of calculus and a precise quantitative science of physics.
  这是一个必要的前体的发展，微积分和精确的定量科学的物理学。
• An amino acid found in most proteins; a precursor of several hormones.
  多数蛋白质中的氨基酸，是许多激素的前体。