DictionarythrobRhythmic pulsing
verb / noun

throb

THRAHB/θrɑːb/

A strong, repeated pulsing, often felt as pain.

He feels his pulse throb beneath his fingertips.

A young adult Latino man feels the strong, steady pulse at his wrist with two fingertips; small, evenly spaced curved motion marks emphasize the rhythmic beat.
Etymology

Middle English throbben described the heart shuddering or pounding. Its origin is uncertain, but it was probably intended to imitate the sound of the heart or blood pulsing.

In context

Whispers of History1:57
Your first job, rubbing salt and vinegar into a hunch of beef so tough your fingers start to throb.
Why You’d Cry Working in a Tudor Kitchen- Whispers of History (Why Tudor Cooks Wept)

More examples

  • A steady throb came from the engine.
  • She felt her pulse throb at her wrist.
  • The headache had become a painful throb.

Forms

throb · throbs · throbbed · throbbing

Similar words

pulse
Pulse is general rhythmic beating; throb often suggests a strong or painful sensation.
ache
An ache can be steady; a throb comes in repeated beats.