noun / verb
pulse
PULS/pʌls/
A brief beat or throb that recurs.
She uses two fingers to feel the pulse at her wrist.

Etymology
The underlying image is a push or stroke. Latin already applied a form of this verb to the beating of blood in veins, leading directly to the bodily sense of pulse.
In context
That is your pulse. the feeling of blood moving through your body. And that means you're actually feeling your heart beating.
More examples
- A dull ache pulses in my temple.
- The sensor sends out a pulse of light every second.
- The reporter tries to take the pulse of the neighborhood.
Forms
pulse · pulses · pulsed · pulsing
pulsation noun — A rhythmic beating or throbbing movement.