Толковый словарь английского языка Oxford English Reference - impulse
Impulse
impulse
n. 1 the act or an instance of impelling; a push. 2 an impetus. 3 Physics a an indefinitely large force acting for a very short time but producing a finite change of momentum (e.g. the blow of a hammer). b the change of momentum produced by this or any force. 4 a wave of excitation in a nerve. 5 mental incitement. 6 a sudden desire or tendency to act without reflection (did it on impulse). Phrases and idioms impulse buying the unpremeditated buying of goods as a result of a whim or impulse. Etymology: L impulsus (as IMPEL)
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1.
I. transitive verb (~d; impulsing) Date: 1611 to give an ~ to, II. noun Etymology: Latin impulsus, from impellere to impel Date: 1647 1. inspiration, motivation, a force so communicated as to produce motion suddenly, incentive, 2. the act of driving onward with sudden force ; impulsion, motion produced by such an impulsion ; impetus, a wave of excitation transmitted through tissues and especially nerve fibers and muscles that results in physiological activity or inhibition, 3. a sudden spontaneous inclination or incitement to some usually unpremeditated action, a propensity or natural tendency usually other than rational, 4. the product of the average value of a force and the time during which it acts ; the change in momentum produced by the force, pulse 4a, see: motive ...Толковый словарь английского языка
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