pulsation

noun
pul·​sa·​tion | \ ˌpəl-ˈsā-shən How to pronounce pulsation (audio) \

Definition of pulsation

1 : rhythmical throbbing or vibrating (as of an artery) also : a single beat or throb
2 : a periodically recurring alternate increase and decrease of a quantity (such as pressure, volume, or voltage)

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Examples of pulsation in a Sentence

you should press against the artery in your wrist and count the pulsations to calculate your heart rate
Recent Examples on the Web What’s Your Pleasure?, on which the U.K. singer, known for lush ballads, turned to Paradise Garage–style pulsation. Spencer Kornhaber, The Atlantic, "How Disco Defined 2020," 23 Dec. 2020 His evidence came from Cepheids, variable stars in the nebulae that reveal their true brightness, and thus their distance, by their pulsation period—a relation discovered by Henrietta Swan Leavitt. Martin Rees, Scientific American, "How Astronomers Revolutionized Our View of the Cosmos," 18 Aug. 2020 These sound waves travel from within the star to create pulsation patterns at their surfaces. Ashley Strickland, CNN, "The 'beating hearts' of these pulsating stars create music to astronomers' ears," 15 May 2020 The pulsations from this star were discovered using HiPERCAM, a revolutionary high-speed camera. Fox News, "Pulsating remains of star discovered by scientists," 18 Mar. 2020 The next step of the research is to continue observing the white dwarf to record as many pulsations as possible using HiPERCAM and the Hubble Space Telescope. Fox News, "Pulsating remains of star discovered by scientists," 18 Mar. 2020 This wobbling is known as a magnetic pulsation, explains Matthew Fillingim, a space physicist at the University of California, Berkeley, and a member of the InSight science team. Robin George Andrews, National Geographic, "Mysterious magnetic pulses discovered on Mars," 20 Sep. 2019 Given their proximity, the red dwarf star's gravitational pull actually distorts the pulsations of the larger star. Ashley Strickland, CNN, "Unusual tear-drop shaped, half-pulsating star discovered by amateur astronomers," 9 Mar. 2020 My face also seemed brighter and more awake, with less fine lines visible immediately after use—presumably thanks to the pulsations. Braelyn Wood, Health.com, "We Tried The Foreo Luna 3 For Three Different Skin Types—Here’s What Happened," 12 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pulsation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pulsation

15th century, in the meaning defined at sense 1

History and Etymology for pulsation

Middle English pulsacioun, borrowed from Medieval Latin pulsātiōn-, pulsātiō, going back to Latin, "repeated striking, knocking (on a door)," from pulsāre "to strike with repeated blows, beat, (in passive) beat wildly (of the heart)" + -tiōn-, -tiō, suffix of verbal action — more at pulsate

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Time Traveler for pulsation

Time Traveler

The first known use of pulsation was in the 15th century

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Statistics for pulsation

Last Updated

31 Dec 2020

Cite this Entry

“Pulsation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pulsation. Accessed 22 Jan. 2021.

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More Definitions for pulsation

pulsation

noun
pul·​sa·​tion | \ ˌpəl-ˈsā-shən How to pronounce pulsation (audio) \

Medical Definition of pulsation

1 : rhythmic throbbing or vibrating (as of an artery) also : a single beat or throb
2 : a periodically recurring alternate increase and decrease of a quantity (as pressure, volume, or voltage)

More from Merriam-Webster on pulsation

Thesaurus: All synonyms and antonyms for pulsation

Nglish: Translation of pulsation for Spanish Speakers

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