Pulsation - Definition

n 1: (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" [syn:
pulsation, pulsing, pulse, impulse]
2: a periodically recurring phenomenon that alternately
increases and decreases some quantity
3: the rhythmic contraction and expansion of the arteries with
each beat of the heart; "he could feel the beat of her heart"
[syn: pulse, pulsation, heartbeat, beat]