pulsation

noun

1. (countable, uncountable)The regular throbbing of the heart, an artery etc. in a living body; the pulse.

   “Pulsation had ceased. For three days the body was preserved unburied, during which it had acquired a stony rigidity.”

2. (countable, uncountable)Any rhythmic beating, throbbing etc.

   “Lo! as a dove when up she springs ⁠To bear thro’ Heaven a tale of woe, ⁠Some dolorous message knit below The wild pulsation of her wings; Like her I go; I cannot stay; ⁠I leave this mortal ark behind […]”

3. (countable, uncountable)The rhythmic increase and decrease of size in naked zoospores and plasmodia.
4. (archaic, countable, uncountable)Physical striking; a blow.

   “By the Cornelian law, pulsation as well as verberation is prohibited.”

5. (countable, uncountable)A single beat, throb or vibration.