Impetus



GRE Barron TOEFL 考研

解释

GRE 红宝书

• n. 推动力; 刺激
• ［英］ n. 推动力; 刺激 ( incentive; impulse)
• ［记］ im ( 进入) +pet ( 追求) +us -> 内心追求 -> 推动力
• ［同］ 同根词: competition ( 竞争, 角逐)

Webster Collegiate

noun

• Etymology: Latin, assault, impetus, from impetere to attack, from in- + petere to go to, seek — more at feather
• Date: 1641
• 1.
  • a.
    • (1) a driving force ; impulse
    • (2) incentive, stimulus
  • b. stimulation or encouragement resulting in increased activity
• 2. the property possessed by a moving body in virtue of its mass and its motion — used of bodies moving suddenly or violently to indicate the origin and intensity of the motion

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