This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A trembling or shaking.

n. Irregular, rapid beating or pulsation of the heart.

n. An abnormal awareness of the beating of the heart.

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

n. The act of palpitating, throbbing, quivering, or trembling; specifically, a beating or pulsation of the heart, particularly a violent and unnatural beating or pulsation, such as is excited by violent action, by emotion, or by disease.

n. a rapid and irregular heart beat

n. a shaky motion

"Under this authority the term palpitation may be employed to mark those morbid motions which chiefly characterise this disease, notwithstanding that this term has been anticipated by Sauvages, as characteristic of another species of tremor [7]."

symptom   

throbbing   

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