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Definitions for: Impulse
[n] the act of applying force suddenly; "the impulse knocked him over"
[n] an impelling force or strength; "the car's momentum carried it off the road"
[n] the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
[n] (electronics) a sharp transient wave in the normal electrical state (or a series of such transients); "the pulsations seemed to be coming from a star"
[n] a sudden desire; "he bought it on impulse"
[n] an instinctive motive; "profound religious impulses"
Webster (1913) Definition: Im"pulse, n. [L. impulsus, fr. impellere. See
Impel.]
1. The act of impelling, or driving onward with sudden force;
impulsion; especially, force so communicated as to
produced motion suddenly, or immediately.
All spontaneous animal motion is performed by
mechanical impulse. --S. Clarke.
2. The effect of an impelling force; motion produced by a
sudden or momentary force.
3. (Mech.) The action of a force during a very small interval
of time; the effect of such action; as, the impulse of a
sudden blow upon a hard elastic body.
4. A mental force which simply and directly urges to action;
hasty inclination; sudden motive; momentary or transient
influence of appetite or passion; propension; incitement;
as, a man of good impulses; passion often gives a violent
impulse to the will.
These were my natural impulses for the undertaking.
--Dryden.
Syn: Force; incentive; influence; motive; feeling;
incitement; instigation.
Im*pulse", v. t. [See Impel.]
To impel; to incite. [Obs.] --Pope.
Synonyms: caprice, impetus, impulsion, momentum, nerve impulse, pulsation, pulse, pulsing, urge, vagary, whim
See Also: abience, action potential, adience, death instinct, death wish, desire, drive, driving force, electrical discharge, force, forcefulness, itchy feet, motivation, motive, need, strength, thrust, undulation, wanderlust, wave
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