Impulse (DC Comics) definition

(1) The act of applying force suddenly

"The impulse knocked him over"

(2) An impelling force or strength

"The car's momentum carried it off the road"

(3) The electrical discharge that travels along a nerve fiber

"They demonstrated the transmission of impulses from the cortex to the hypothalamus"

(4) (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"

(5) A sudden desire

"He bought it on an impulse"

(6) An instinctive motive

"Profound religious impulses"