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pulsation

[puhl-sey-shuh n] /pʌlˈseɪ ʃən/
noun
1.
the act of pulsating; beating or throbbing.
2.
a beat or throb, as of the pulse.
3.
vibration or undulation.
4.
a single vibration.
Origin
late Middle English
1375-1425
1375-1425; late Middle English pulsacioun < Latin pulsātiōn- (stem of pulsātiō). See pulsate, -ion
Related forms
nonpulsation, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for pulsation
  • Sensor stops pulsation when brush applies too much pressure.
  • It is an effect of the spiked light frequency pattern on the pupil causing a pulsation or flutter response in the pupil.
  • Movement from one block to the next can only occur at a particular point in the pulsation.
  • The mechanism that drives pulsation is understood to be a balance between opacity, photosphere temperature, and gravity.
  • In many vehicles, drivers may experience a rapid pulsation of the brake pedal--almost as if the brakes are pushing back at you.
British Dictionary definitions for pulsation

pulsation

/pʌlˈseɪʃən/
noun
1.
the act of pulsating
2.
(physiol) a rhythmic beating or pulsing esp of the heart or an artery
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for pulsation
n.

early 15c., from Middle French pulsation (14c.) and directly from Latin pulsationem (nominative pulsatio) "a beating or striking," noun of action from past participle stem of pulsare "to beat, strike, push against' hammer, keep hitting," figuratively "drive forth, disturb, disquiet," frequentative of pellere (past participle pulsus) "to beat, strike" (see pulse (n.1)).

Online Etymology Dictionary, © 2010 Douglas Harper
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pulsation in Medicine

pulsation pul·sa·tion (pŭl-sā'shən)
n.

  1. The act of pulsating.

  2. A single beat, throb, or vibration.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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