pulsate

(verb) expand and contract rhythmically; beat rhythmically. Synonyms: throb, pulse. Examples: "The baby's heart was pulsating again after the surgeon massaged it."

(verb) move with or as if with a regular alternating motion. Synonyms: beat, quiver. Examples: "The city pulsated with music and excitement."

(verb) produce or modulate (as electromagnetic waves) in the form of short bursts or pulses or cause an apparatus to produce pulses. Synonyms: pulse. Examples: "Pulse waves." "A transmitter pulsed by an electronic tube."