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   pulse

   /pʌls/

   noun

   • 1. a rhythmical throbbing of the arteries as blood is propelled through them, typically as felt in the wrists or neck: "the doctor found a faint pulse" Similar heartbeatpulsationpulsingthrobthrobbingvibrationpoundingthuddingthudthumpingthumpdrumming
   • ▪ each successive throb of the arteries or heart.
   • 2. a single vibration or short burst of sound, electric current, light, or other wave: "a pulse of gamma rays" Similar burstblastspurteruptionimpulsesurgeinformal:splurt
   • ▪ a musical beat or other regular rhythm. Similar rhythmbeatrhythmical flow/patternmeasuremetretempocadence
   • 3. the central point of energy and organization in an area or activity: "those close to the financial and economic pulse maintain that there have been fundamental changes"
   • 4. a measured amount of an isotopic label given to a culture of cells.

   verb

   • 1. throb rhythmically; pulsate: "a knot of muscles at the side of his jaw pulsed"
   • 2. modulate (a wave or beam) so that it becomes a series of pulses: "the current was pulsed"
   • ▪ apply a pulsed signal to (a device): "a loudspeaker pulsed by a capacitor discharge"
   • ▪ short for pulse-label

   Word Origin late Middle English: from Latin pulsus ‘beating’, from pellere ‘to drive, beat’.

   Derivatives

   • 1. pulseless adjective
   • 2. pulser noun

   Scrabble Points: 7

   • P

     3

   • U

     1

   • L

     1

   • S

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   • E

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