# pulse
## English
### Pronunciation

* (Received Pronunciation) IPA: /pʌls/
* (General American) IPA: /pʌls/, [pəls]
* Audio (General American):(file)
* (Canada) IPA: /pʊls/, /pʌls/
* Rhymes: -ʌls, -ʊls

### Etymology 1

From Late Middle English pulse, Middle English pous, pouse (“regular beat of arteries, pulse; heartbeat; place on the body where a pulse is detectable; beat (of a musical instrument); energy, vitality”) [and other forms], from Anglo-Norman puls, pous, pus, and Middle French pouls, poulz, pous [and other forms], Old French pous, pulz (“regular beat of arteries; place on the body where a pulse is detectable”) (modern French pouls), and from their etymon Latin pulsus (“beat, impulse, pulse, stroke; regular beat of arteries or the heart”), from pellō (“to drive, impel, propel, push; to banish, eject, expel; to set in motion; to strike”) (ultimately from Proto-Indo-European *pel- (“to beat, strike; to drive; to push, thrust”)) + -sus (a variant of -tus (suffix forming action nouns from verbs)).

#### Noun

pulse (plural pulses)
* (physiology)
** A normally regular beat felt when arteries near the skin (for example, at the neck or wrist) are depressed, caused by the heart pumping blood through them.
** The nature or rate of this beat as an indication of a person's health.
    Her pulse was thready and weak.
*** 1764, “№ XXVII. A Dissertation on the Pulse, and the Dijudication Drawn therefrom.”, in The Medical Museum: Or, A Repository of Cases, Experiments, Researches, and Discoveries Collected at Home and Abroad […], volume III, London: […] W. Richardson and S. Clark; and sold by W. Bristow, […], →OCLC, page 216:[A] Pulſe which is ſlow and large denotes ſufficient remains of ſtrength, tenſion, and thickneſs of the fibres of the heart and arteries, and a viſcid and tenacious blood. All unequal Pulſes are very bad, ſince they denote that there is neither a due influx of the ſpirits, nor a proper and equal mixture of the blood; but particularly ſuch Pulſes always prognoſticate unlucky events, when they are weak.
*** 1870 May 21, Thomas Cash, “United Kingdom Band of Hope Union. Annual Conference.”, in The Temperance Record. The Organ of the National Temperance League, number 738, London: William Tweedie, […], →OCLC, page 247, column 2:[M]y experience is that men may enjoy better health, do more work, have clearer brains, a steadier pulse, and go on to old age better without alcohol than with.
* (figuratively) A beat or throb; also, a repeated sequence of such beats or throbs.
** 1756 (date written), [Edmund Burke], “Sect. XI. The Artificial Infinite.”, in A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful, London: […] R[obert] and J[ames] Dodsley, […], published 1757, →OCLC, part IV, page 135:When the ear receives any ſimple ſound, it is ſtruck by a ſingle pulſe of the air, which makes the ear-drum and the other membranous parts vibrate according to the nature and ſpecies of the ſtroke.
** 1850, [Alfred, Lord Tennyson], In Memoriam, London: Edward Moxon, […], →OCLC, Canto LXXXV, page 125:I roved at random through the town, / [...] / And caught once more the distant shout, / The measured pulse of racing oars / Among the willows; [...]
* (figuratively) The focus of energy or vigour of an activity, place, or thing; also, the feeling of bustle, busyness, or energy in a place; the heartbeat.
    You can really feel the pulse of the city in this district.
* (chiefly biology, chemistry) An (increased) amount of a substance (such as a drug or an isotopic label) given over a short time.
* (cooking, chiefly attributively) A setting on a food processor which causes it to work in a series of short bursts rather than continuously, in order to break up ingredients without liquidizing them; also, a use of this setting.
* (music, prosody) The beat or tactus of a piece of music or verse; also, a repeated sequence of such beats.
* (physics)
** A brief burst of electromagnetic energy, such as light, radio waves, etc.
*** 1969, “[Scientific Progress in F[iscal] Y[ear] 69: Electronics] The Photon Echo”, in Jacob Seiden, editor, OAR Progress for 1969 (OAR 69-0017; AD 699300), Arlington, Va.: Office of Aerospace Research, United States Air Force, →OCLC, page 71, column 1:A thin ruby crystal is illuminated by two successive intense short pulses of coherent light, t seconds apart, obtained from a ruby-laser source. As expected, the crystal will transmit the two pulses t seconds apart. But then one observes a curious additional feature: a third light pulse emerges spontaneously from the crystal about t seconds following the second pulse, and still relatively intense.
** Synonym of autosoliton (“a stable solitary localized structure that arises in nonlinear spatially extended dissipative systems due to mechanisms of self-organization”)
** (also electronics) A brief increase in the strength of an electrical signal; an impulse.
* (transport) A timed, coordinated connection, when multiple public transportation vehicles are at a hub at the same time so that passengers can flexibly connect between them.

##### Derived terms

* a pussy and a pulse
* electromagnetic pulse
* finger on the pulse
* have one's finger on the pulse
* have one's fingers on the pulse
* nuclear magnetic pulse
* nuclear-pulse rocket
* oxygen pulse
* pulsed (adjective)
* pulse decay time
* pulse demodulator
* pulse detonation engine
* pulse dialing, pulse dialling
* pulseful (rare)
* pulse glass
* pulsejet, pulse jet
* pulseless
* pulselike, pulse-like
* pulse modulation
* pulse modulator
* pulse ox
* pulse oximeter
* pulse oximetric
* pulse oximetry
* pulse-pounding
* pulse pressure
* pulse repetition time
* pulse wave
* pulsimeter
* pulsometer

##### Related terms

* impulse
* repulse
* pulsion
* pulsive

##### See also

* (physiology): arrhythmia, blood pressure, heartbeat
* (music, prosody): meter, tempo

### Etymology 2

From Late Middle English pulse, Middle English pulsen (“to pulse, throb”), from Latin pulsāre, the present active infinitive of pulsō (“to push; to beat, batter, hammer, strike; to knock on; to pulsate; (figuratively) to drive or urge on, impel; to move; to agitate, disquiet, disturb”), the frequentative of pellō (“to drive, impel, propel, push; to banish, eject, expel; to set in motion; to strike”); see further at etymology 1. Doublet of push.

#### Verb

pulse (third-person singular simple present pulses, present participle pulsing, simple past and past participle pulsed)
* (transitive, also figuratively) To emit or impel (something) in pulses or waves.
** 1850, W[illiam] C[ox] Bennett, “The Shadow-hunted”, in Poems, London: Chapman and Hall, […], →OCLC, page 139:Though a light of love she swimmeth, / Zoned with utterless desire, / And the air of her swift coming / Through thy hot veins pulseth fire.
** 2023 August 30, Ashley Strickland, “Astronomers solve the puzzle of an unusual pulsing dead star”, in CNN‎:Rapidly rotating dead stars, pulsars are so named because as they spin, they release beams of electromagnetic radiation across space that appear to pulse like celestial lighthouses.
* (transitive, chiefly biology, chemistry) To give to (something, especially a cell culture) an (increased) amount of a substance, such as a drug or an isotopic label, over a short time.
* (transitive, cooking) To operate a food processor on (some ingredient) in short bursts, to break it up without liquidizing it.
* (transitive, electronics, physics)
** To apply an electric current or signal that varies in strength to (something).
** To manipulate (an electric current, electromagnetic wave, etc.) so that it is emitted in pulses.
* (intransitive, chiefly figuratively and literary) To expand and contract repeatedly, like an artery when blood is flowing though it, or the heart; to beat, to throb, to vibrate, to pulsate.
    Synonym: undulate
    Hot blood pulsed through my veins as I grew angrier.
    The streets were dark, and all that could be seen was light pulsing from the disco.
** 1849, A[ndrew] J[ames] Symington, “To Mademoiselle Jenny Lind”, in Harebell Chimes: Or Summer Memories and Musings, London: Houlston and Stoneman; Edinburgh: W[illia]m Blackwood and Sons, →OCLC, stanza 5, page 139:As pulseth in thy northern skies / Th' Aurora—so, in ecstasies, / Through starry maze, my spirit flies; [...]
** 1864, James Thomson, “Vane’s Story”, in Vane’s Story, Weddah and Om-El-Bonain, and Other Poems, London: Reeves and Turner, […], published 1881, →OCLC, the story, page 54:None dare awake the deep affright / That pulseth in the heart of night, [...]
** 1867, Arthur H[enry] W[innington] Ingram, “To a Squirrel”, in The Doom of the Gods of Hellas, and Other Poems, London: A. W. Bennett, […], →OCLC, page 57:Come, descend to lower station! / We are of the same creation, / And the life that all sustains / Pulseth in our purple veins: [...]
** 1887 February 3, F. V., “O Heart Divine!”, in Lyman Abbott, Hamilton W[right] Mabie, editors, The Christian Union, volume 35, number 5, New York, N.Y.: The Christian Union Company, →OCLC, page 31, column 2:O Heart Divine, that pulsest through all space, / Why dost Thou seem so far away and cold? / We miss the pressure of the arms that fold; / We long to hear Thy voice, to see Thy face. [From the New Orleans Times-Democrat.]
* (intransitive, figuratively) Of an activity, place, or thing: to bustle with energy and liveliness; to pulsate.
** 2022 February 18, Jamelle Bouie, “Opinion: You Just Can’t Tell the Truth About America Anymore”, in The New York Times‎, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 2023-05-02:There is a dangerous censoriousness pulsing through American society. In small towns and big cities alike, would-be commissars are fighting, in the name of a distinct minority of Americans, to stifle open discussion and impose their views on the community at large. Dissenters, when they speak out, are hounded, ostracized and sometimes even forced from their jobs.
** 2023 March 26, David Hytner, “Kane and Bukayo Saka combine against Ukraine for England’s perfect Euros start”, in The Guardian‎:The emotion had pulsed from the outset, the Ukraine players emerging from the tunnel with blue and yellow flags around their shoulders; the rendition of their anthem seeing eyes well up.

##### Derived terms

* pulsed (adjective)
* pulser
* pulsing (adjective, noun)

##### Related terms

* pulsate
* pulsating (adjective, noun)
* pulsation
* pulsative
* pulsator
* pulsatory
* pulser

##### Translations
### Etymology 3

From Middle English puls (“(collectively) seeds of a leguminous plant used as food; leguminous plants collectively; a species of leguminous plant”), Early Middle English pols (in compounds), possibly from Anglo-Norman pus, puz, Middle French pouls, pols, pous, and Old French pous, pou (“gruel, mash, porridge”) (perhaps in the sense of a gruel made from pulses), or directly from their etymon Latin puls (“meal (coarse-ground edible part of various grains); porridge”), probably from Ancient Greek πόλτος (póltos, “porridge made from flour”), from Proto-Indo-European *pel- (“dust; flour”) (perhaps by extension from *pel- (“to beat, strike; to drive; to push, thrust”), in the sense of something beaten).

#### Noun

pulse (countable and uncountable, plural pulses)
* (uncountable) Annual leguminous plants (such as beans, lentils, and peas) yielding grains or seeds used as food for humans or animals; (countable) such a plant; a legume.
** 2022 November 22, Katie Hunt, “Neanderthals cooked meals with pulses 70,000 years ago”, in CNN‎:Wild nuts, peas, vetch, a legume which had edible seed pods, and grasses were often combined with pulses like beans or lentils, the most commonly identified ingredient, and at times, wild mustard. To make the plants more palatable, pulses, which have a naturally bitter taste, were soaked, coarsely ground or pounded with stones to remove their husk.
* (uncountable) Edible grains or seeds from leguminous plants, especially in a mature, dry condition; (countable) a specific kind of such a grain or seed.

##### Translations
### References

* ↑ “pǒus(e, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.
* ↑ Compare “pulse, n.$^2$”, in OED Online ⁠, Oxford: Oxford University Press, December 2007; “pulse$^1$, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
* ↑ “pulsen, v.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.
* ↑ Compare “pulse, v.”, in OED Online ⁠, Oxford: Oxford University Press, September 2007; “pulse$^1$, v.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
* ↑ “puls, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.
* ↑ Compare “pulse, n.$^1$”, in OED Online ⁠, Oxford: Oxford University Press, September 2007; “pulse$^2$, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

### Further reading

* pulse on Wikipedia.Wikipedia
* pulse (physics) on Wikipedia.Wikipedia
* pulse (signal processing) on Wikipedia.Wikipedia
* pulse (disambiguation) on Wikipedia.Wikipedia
* legume on Wikipedia.Wikipedia
* William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “pulse”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
* “pulse”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
* Richard DeLone [et al.] (1975) Gary E. Wittlich, editor, Aspects of Twentieth-century Music, Englewood Cliffs, N.J.: Prentice-Hall, →ISBN

### Anagrams

* Lupes, spule, Plues, lupes, pules, Uleps, pusle, Lepus

## Dutch
### Verb

pulse
* (dated or formal) singular present subjunctive of pulsen

## Latin
### Participle

pulse
* vocative masculine singular of pulsus

## Portuguese
### Verb

pulse
* inflection of pulsar:
** first/third-person singular present subjunctive
** third-person singular imperative

## Spanish
### Verb

pulse
* inflection of pulsar:
** first/third-person singular present subjunctive
** third-person singular imperative