Palpitation
Pronunciation : Pal`pi*ta"tion
Part of Speech : n.
Etymology : [L. palpitatio: cf. F. palpitation.]
Definition : Defn: A rapid pulsation; a throbbing; esp., an abnormal, rapid beating of the heart as when excited by violent exertion, strong emotion, or by disease.
Source : Webster's Unabridged Dictionary, 1913