Throbbing is beating or pulsing strongly and steadily. A throbbing headache, throbbing pain, the throbbing of the engine.
It is the word doctors listen for, since a throbbing pain follows the pulse and points to blood vessels rather than to nerves or muscle. Of machinery it means a deep regular beat you feel as much as hear.
1nounthrobbingBeating or pulsing strongly and steadily, as an aching wound does.
“The throbbing in my tooth kept me awake all night.”
throbbing is a beating.
Middle English
throbben
English
throb
English, today
throbbing
throb comes from Middle English throbben; possibly of imitative of the sound origin. Cognate with Scots thrab (“to throb”). Compare also drub.
Etymology from Wiktionary, CC BY-SA