throbber

verb (used without object), throbbed, throb·bing.

1. to beat with increased force or rapidity, as the heart under the influence of emotion or excitement; palpitate.
2. to feel or exhibit emotion: He throbbed at the happy thought.
3. to pulsate; vibrate: The cello throbbed.

noun

4. the act of throbbing.
5. a violent beat or pulsation, as of the heart.
6. any pulsation or vibration: the throb of engines.

verb throbs, throbbing or throbbed (intr)

1. to pulsate or beat repeatedly, esp with increased forceto throb with pain
2. (of engines, drums, etc) to have a strong rhythmic vibration or beat

noun

3. the act or an instance of throbbing, esp a rapid pulsation as of the hearta throb of pleasure

v.mid-14c., of uncertain origin, perhaps meant to represent in sound the pulsation of arteries and veins or the heart. Related: Throbbed; throbbing. The noun is first attested 1570s. v.

1. To beat rapidly or perceptibly, such as occurs in the heart or a constricted blood vessel.

n.

1. A strong or rapid beat; a pulsation.