Pulsation

n.	1.	(Physiol.) A beating or throbbing, especially of the heart or of an artery, or in an inflamed part; a beat of the pulse.
	2.	A single beat or throb of a series.
	3.	A stroke or impulse by which some medium is affected, as in the propagation of sounds.
	4.	(Law) Any touching of another's body willfully or in anger. This constitutes battery. By the Cornelian law, pulsation as well as verberation is prohibited. - Blackstone.

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

alternation, arrhythmia, bar beat, barrage, beat, beating, ceaselessness, chattering, constancy, constant flow, continualness, continuity, cyclicalness, downbeat, drum, drum music, drumbeat, drumfire, drumming, flutter, heartbeat, heartthrob, incessancy, intermittence, intermittency, meter, noninterruption, offbeat, oscillation, palpitation, paradiddle, patter, pendulum motion, periodicalness, periodicity, perpetuity, piston motion, pitapat, pitter-patter, pound, pounding, pulse, quick fire, rapid fire, rapid recurrence, rapid succession, rapidity, rat-a-tat, rat-tat, rat-tat-tat, rataplan, rattattoo, reappearance, recurrence, regular wave motion, regularity, reoccurrence, repetition, return, rhythm, roll, rub-a-dub, ruff, ruffle, seasonality, spatter, splutter, sputter, staccato, steadiness, stuttering, sustainment, tat-tat, tattoo, tempo, throb, throbbing, thrum, thumping, tom-tom, undulation, unintermission, uninterruption, upbeat, vibration