noun A wish or urge, particularly a sudden one prompting action.noun A thrust a push a sudden force that impels.noun A mental force which simply and directly urges to action hasty inclination sudden motive momentary or transient influence of appetite or passion propension incitementįrom Wiktionary, Creative Commons Attribution/Share-Alike License.noun (Mech.) The action of a force during a very small interval of time the effect of such action.noun The effect of an impelling force motion produced by a sudden or momentary force.noun The act of impelling, or driving onward with sudden force impulsion especially, force so communicated as to produced motion suddenly, or immediately.transitive verb obsolete To impel to incite.noun Any communication of force any compelling action instigation.įrom the GNU version of the Collaborative International Dictionary of English.noun A stimulation of the mind to action the impelling force of appetite, desire, aversion, or other emotion especially, a sudden disposition to perform some act which is not the result of reflection sudden determination.noun The momentum produced by a force in any time.noun The resultant of all such forces acting on a body at any instant, resolved into a couple and a force along the axis of that couple.noun Specifically In mech.: An infinite force or action enduring for an infinitely short time, so as to produce a finite momentum.noun Force communicated suddenly the effect of an impelling force a thrust a push.To give an impulse to incite instigate.adjective Characterized by impulsiveness or acting on impulse.noun 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.The impulse equals the change in momentum produced by the force in this time interval.
From The American Heritage® Dictionary of the English Language, 5th Edition.
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