[noun] an instinctive motive; "profound religious impulses" Synonyms:urge
[noun] a sudden desire; "he bought it on an impulse" Synonyms:caprice, whim
[noun] the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus" Synonyms:nerve
[noun] (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" Synonyms:pulsation, pulsing, pulse
[noun] the act of applying force suddenly; "the impulse knocked him over" Synonyms:impulsion, impetus
[noun] an impelling force or strength; "the car's momentum carried it off the road" Synonyms:momentum
