Pulse (noun)

1. The rhythmic expansion and contraction of an artery as blood is forced through it by the heart.
2. The regular expansion and contraction of an organ or other body part.
3. The regular beating of the heart as felt through the walls of a peripheral artery.

Origin:

From latin pulsus ("a striking, a blow, a bea.t")

Examples:

1. He felt her pulse and it was steady.
2. The pulse rate was high after the exercise.
3. The pulse can be felt at the wrist.
4. The pulse of the music was strong.
5. The pulse of the economy is slowly recovering.