pulse

名词 n. 动词 v.
中文释义
英 /pʌls/    美 /pʌls/|[pəls]

英文释义

名词 n.
  1. 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 qualitative nature of this beat.
    — Her pulse was thready and weak.
  2. 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. uncountable
    — 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.
  3. The rate of this beat as an indication of a person's health. broadly,metonymically
    — Her pulse was 110 at 8 a.m.
  4. Edible grains or seeds from leguminous plants, especially in a mature, dry condition; (countable) a specific kind of such a grain or seed. uncountable
  5. A beat or throb; also, a repeated sequence of such beats or throbs. figuratively
    — 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.
  6. 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. figuratively
    — You can really feel the pulse of the city in this district.
  7. An (increased) amount of a substance (such as a drug or an isotopic label) given over a short time.
  8. 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. attributive
  9. The beat or tactus of a piece of music or verse; also, a repeated sequence of such beats.
  10. A brief burst of electromagnetic energy, such as light, radio waves, etc.
    — 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.
  11. Synonym of autosoliton (“a stable solitary localized structure that arises in nonlinear spatially extended dissipative systems due to mechanisms of self-organization”).
  12. A brief increase in the strength of an electrical signal; an impulse. also
  13. 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.
动词 v.
  1. To emit or impel (something) in pulses or waves. also,figuratively,transitive
    — Though a light of love she swimmeth, / Zoned with utterless desire, / And the air of her swift coming / Through thy hot veins pulseth fire.
  2. 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
  3. To operate a food processor on (some ingredient) in short bursts, to break it up without liquidizing it. transitive
  4. To apply an electric current or signal that varies in strength to (something). transitive
  5. To manipulate (an electric current, electromagnetic wave, etc.) so that it is emitted in pulses. transitive
  6. 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. figuratively,intransitive,literary
    — Hot blood pulsed through my veins as I grew angrier.
  7. Of an activity, place, or thing: to bustle with energy and liveliness; to pulsate. figuratively,intransitive
    — 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.

词形变化

pulses plural pulses present,singular,third-person pulsing participle,present pulsed participle,past pulsed past pulses plural

词汇关系

衍生词
aeropulse afterpulse anthropulse apulse a pussy and a pulse attopulse chirped-pulse amplification electromagnetic pulse electropulse finger on the pulse have one's finger on the pulse have one's fingers on the pulse interpulse intrapulse macropulse micropulse monopulse multipulse nanopulse nonpulse nuclear magnetic pulse nuclear-pulse rocket overpulse oxygen pulse photopulse postpulse prepulse pulsable pulsate pulsebeat pulse decay time pulse demodulator pulse detonation engine pulse diagnosis pulse dialing pulse dialling pulseful 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 pulsetrain pulse wave pulsewidth pulsific pulsimeter pulsometer quadripulse subpulse underpulse wavepulse pulsed pulser pulsing
相关词
impulse repulse pulsion pulsive arrhythmia blood pressure heartbeat meter tempo pulsate pulsating pulsation pulsative pulsator pulsatory pulser

词源

词源 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)).
词源 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; (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.
词源 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).
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