pulse

• heartbeat, rhythmic expansion and contraction of the heart; throbbing, beating; edible seeds of various plants; plants producing these types of seeds
beat, throb; expand and contract rhythmically; vibrate, quiver; flow; cause to pulse; produce or control in the form of short pulses; cause an apparatus to produce pulses (as "to pulse the food processor"); (medicine) administer medication in interrupted and in concentrated dosages to avoid undesirable side effects
your pulse is the regular beat you can feel when you touch particular parts of your body such as your wrist or neck, which is caused by blood being pumped through your body by your heart.
some seeds which can be cooked and eaten are called pulses, for example the seeds of peas, beans, and lentils.
if something pulses, it moves or shakes with strong, regular movements.