Definitions:
a rhythmical throbbing of the arteries as blood is propelled through them, typically as felt in the wrists or neck

a single vibration or short burst of sound, electric current, light, or other wave

the central point of energy and organization in an area or activity

a measured amount of an isotopic label given to a culture of cells.

throb rhythmically; pulsate

modulate (a wave or beam) so that it becomes a series of pulses

the edible seed of a leguminous plant, for example a chickpea, lentil, or bean