| 释义 |
im·pulse AHD[ĭmʹpŭls'] D.J.[ˈɪmˌpʌls]K.K.[ˈɪmˌpʌls]n.（名词）- An impelling force; an impetus.动力：驱使性的力量；动力
- The motion produced by such a force.推动：由这种力量造成的移动
- A sudden wish or urge that prompts an unpremeditated act or feeling; abrupt inclination:冲动：突然的心愿或欲望导致的未经考虑的行动和感受；突兀的倾向：had an impulse to run away; an impulse of regret that made me hesitate; bought a hat on impulse.有一种跑开的冲动；突发的后悔之情令我犹豫不决；心血来潮买了一顶帽子
- A motivating force or tendency:本能：驱动力或倾向："Respect for the liberty of others is not a natural impulse in most men"(Bertrand Russell)“对大多数人来说，尊重他人的自由并不是一种自然的本能”(伯特兰·罗素)
- Electronics A surge of electrical power in one direction.【电子学】 脉冲：电力的单向涌动
- Physics The product obtained by multiplying the average value of a force by the time during which it acts. The impulse equals the change in momentum produced by the force in this time interval.【物理学】 冲量，推进力：力的平均值与它的作用时间相乘的结果。等于力在其作用时间段内产生的动量的变化
- Physiology The electrochemical transmission of a signal along a nerve fiber that produces an excitatory or inhibitory response at a target tissue, such as a muscle or another nerve.【生理学】 神经脉冲：信号沿着神经纤维的电化性的传播，在目标组织上产生兴奋的或抑制的反应，如在肌肉或另一神经上
adj.（形容词）- Characterized by impulsiveness or acting on impulse:冲动的：以冲动或即兴行动为特征的：an impulse shopper; impulse buying.即兴的购物者；即兴购物
- Latin impulsus [from past participle of] impellere [to impel] * see impel 拉丁语 impulsus 源自impellere的过去分词 [驱使，迫使] * 参见 impel
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