impulse

noun

1.
an instinctive motive
urge
2.
3.
the electrical discharge that travels along a nerve fiber
nerve impulse nervous impulse neural impulse
4.
(electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
pulsation pulse pulsing
5.
the act of applying force suddenly
sweight impetus impulsion
6.
an impelling force or strength
birr sweight momentum