perturbation

perturbation
noun
  1. [mass noun]anxiety; mental uneasiness
    不安,烦恼
    she sensed her friend's perturbation.
    她感觉到她的朋友心绪不宁。
    ■[count noun]a cause of such anxiety or uneasiness
    不安(或烦恼)的缘由
    Frank's atheism was more than a perturbation to Michael.
    弗兰克的无神论使得迈克尔非常不安。
  2. a deviation of a system, moving object, or process from its regular or normal state of path, caused by an outside influence
    搅乱,紊乱,扰乱
    some minor perturbation in his house's cash flow.
    他家中资金流动的某种小混乱。
    ■(Physics)a slight alteration of a physical system, for example of the electrons in an atom, caused by a secondary influence
    (物理)微扰
    ■(Astronomy)a minor deviation in the course of a celestial body, caused by the attraction of a neighbouring body
    (天文)摄动
语源
  1. late Middle English: from Latin perturbatio(n-), from the verb perturbare 'disturb greatly' (see perturb)
英语宝典
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