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