Palpitation

n.

1.

A rapid pulsation; a throbbing; esp., an abnormal, rapid beating of the heart as when excited by violent exertion, strong emotion, or by disease.

Noun	1.	palpitation - a rapid and irregular heart beat
	2.	palpitation - a shaky motion; "the shaking of his fingers as he lit his pipe" Synonyms: quivering, shakiness, trembling, shaking, quiver, vibration

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