Pulsate (verb)

1. To beat or throb with a strong, regular rhythm.
2. To expand and contract rhythmically.

Origin:

From latin pulsare "to beat, strike".

Examples:

1. His heart was pulsating rapidly.
2. The music made the floor pulsate.
3. The light pulsated, making it hard to keep his eyes open.
4. The pulsating pain in his head was making him dizzy.
5. The water in the pool pulsated with the waves.