Definition of "pulsation"

pulsation

/pʌlˈseɪʃn̩/

noun
countable and uncountable, plural pulsations
1. The regular throbbing of the heart, an artery etc. in a living body; the pulse.
  Quotations
  Pulsation had ceased. For three days the body was preserved unburied, during which it had acquired a stony rigidity.
  1844, Edgar Allan Poe, The Premature Burial
2. Any rhythmic beating, throbbing etc.
  Quotations
  Lo! as a dove when up she springs⁠To bear thro’ Heaven a tale of woe,⁠Some dolorous message knit belowThe wild pulsation of her wings;Like her I go; I cannot stay;⁠I leave this mortal ark behind […]
  1850, [Alfred, Lord Tennyson], In Memoriam, London: Edward Moxon, […], canto XII
3. (now rare) Physical striking; a blow.
  Quotations
  By the Cornelian law, pulsation as well as verberation is prohibited.
  1765–1769, William Blackstone, Commentaries on the Laws of England, (please specify |book=I to IV), Oxford, Oxfordshire: […] Clarendon Press
4. A single beat, throb or vibration.