A man taking his pulse on his wrist.
An example of a pulse is the throbbing beat heard at the wrist.
- the regular beating in the arteries, caused by the contractions of the heart
- any beat, signal, vibration, etc. that is regular or rhythmical
- the perceptible underlying feelings of the public or of a particular group
- a variation, characterized by a rise, limited duration, and decline, of a quantity whose value normally is constant; specif.,
- Elec. a brief surge of voltage or current
- Radio a very short burst of electromagnetic waves
Origin of pulseMiddle English pous from Old French from Classical Latin pulsus (venarum), beating (of the veins) from pulsus, past participle of pellere, to beat: see felt
intransitive verbpulsed, puls′ing
- to cause to pulsate
- to drive (an engine, etc.) by pulses
- Elec. to apply pulses to
- Radio to modify (an electromagnetic wave) by means of pulses
- the edible seeds of peas, beans, lentils, and similar plants having pods
- any leguminous plant
Origin of pulseMiddle English pous from Old French pouls from Classical Latin puls (gen. pultis), a pottage made of meal or pulse, probably from Classical Greek poltos from Indo-European base an unverified form pel-, dust, meal from source Classical Latin pollen, pulvis
- The rhythmical throbbing of arteries produced by the regular contractions of the heart, especially as palpated at the wrist or in the neck.
- a. A regular or rhythmical beating.b. A single beat or throb.
- Physics a. A brief sudden change in a normally constant quantity: a pulse of current; a pulse of radiation.b. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.
- The perceptible emotions or sentiments of a group of people: “a man who had … his finger on the pulse of America” ( Thomas P. O'Neill, Jr. )
verbpulsed, puls·ing, puls·es
- To pulsate; beat: “The nation pulsed with music and proclamation, with rages and moral pretensions” ( Lance Morrow )
- Physics To undergo a series of intermittent occurrences characterized by brief, sudden changes in a quantity.
Origin of pulseMiddle English pous, puls from Old French pous, pulz from Latin pulsus from past participle of pellere to beat ; see pel-5 in Indo-European roots.
- The edible seeds of certain pod-bearing plants, such as lentils and chickpeas.
- A plant yielding these seeds.
Origin of pulseMiddle English pols, puls from Latin puls pottage of meal and pulse probably ultimately from Greek poltos
- Any annual legume yielding from 1 to 12 grains or seeds of variable size, shape and colour within a pod, and used as food for humans or animals.
- (physiology) A normally regular beat felt when arteries are depressed, caused by the pumping action of the heart.
- A beat or throb.
- (music) The beat or tactus of a piece of music.
- An autosoliton.
(third-person singular simple present pulses, present participle pulsing, simple past and past participle pulsed)
- to beat, to throb, to flash.
- In the dead of night, all was still but the pulsing light.
- to flow, particularly of blood.
- Hot blood pulses through my veins.
- to emit in discrete quantities
pulse - Computer Definition
A brief, temporary change in a quantity or value from its normal or initial level for a period of time, and then a decay of that value back to the original level. Purely digital systems that do not rely on the modulation of an underlying carrier fit this definition.Telegraphy, for example, relies on the making and breaking of an electrical current so that the normal or initial level is a current off (no current) condition and the pulse is either a short or long current on (yes current) condition (dot or dash, respectively), separated by a short current off (no current) condition (space). Similarly, digital fiber optic transmission systems (FOTS) operate on the basis of light on (1 bit) and light off (0 bit).