definition of
[throbbing]

[1] #1 throbbing n. [throb, pounding] an instance of rapid strong pulsation (of the heart); "he felt a throbbing in his head". wn

[2] #2 throbbing s. pounding or beating strongly or violently; "a throbbing pain"; "the throbbing engine of the boat". wn

[3] #3 throbbing n. a sound with a strong rhythmic beat; "the throbbing of the engines". wn