[f. THROB v. + -ING1.] The action of the verb THROB in various senses; an instance of this; pulsation, beating; vibration; rhythmic movement.

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1676.  Wiseman, Chirurg. Treat., VI. vi. 430. In the depending Orifice there was a throbbing of the Arteriall bloud.

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1758.  J. S., Le Dran’s Observ. Surg. (1771), 152. He felt frequent Throbbings or Shootings in the Tumour.

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1889.  Doyle, Micah Clarke, 234. On every side of us sounded the throbbing of the sea.

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