• noun a short burst of current or voltage
  • noun a pressure wave that can be felt in an artery each time the heart beats to pump blood
  • noun a leguminous plant that produces seeds eaten as food, e.g. a bean or pea
  • For a quantity which is normally constant, a well-defined variation which increases from a steady value to a maximum, then back to or near the original value, all in a comparatively short time. Pulses may be desired or unwanted. Applications of intentionally-generated pulses include clock pulses, gate pulses, dial pulses, radar pulses, blanking pulses, and certain light pulses. Undesired pulses include noise pulses, spikes, and certain light pulses. A pulse of very short duration is an impulse (3), although both terms are often used synonymously.

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