n. 悸动, 跳动, 心跳

[医] 心悸, 心跳

Palpitation \Pal`pi*ta"tion\, n. [L. palpitatio: cf. F.
palpitation.]
A rapid pulsation; a throbbing; esp., an abnormal, rapid
beating of the heart as when excited by violent exertion,
strong emotion, or by disease.