- The definition of a pulse is a rhythmic beating in the arteries caused by the beating of the heart.
An example of a pulse is the throbbing beat heard at the wrist.
pulse definition by Webster's New World
- 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: Middle English pous ; from Old French ; from Classical Latin pulsus (venarum), beating (of the veins) ; from pulsus, past participle of pellere, to beat: see felt
- 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
- pulser noun
- the edible seeds of peas, beans, lentils, and similar plants having pods
- any leguminous plant
Origin: Middle 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
pulse definition by American Heritage Dictionary
- 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.)
- 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: Middle English, from Old French, 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 peas and beans.
- A plant yielding these seeds.
Origin: Middle English pols, from Old French, from Latin puls, pottage of meal and pulse, probably ultimately from Greek poltos.
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).
A short duration of current flow. The current rises and falls sharply, but not instantaneously. See wave.
pulse - Medical Definition
pulse - Phrases/Idioms
take the pulse of
pulse - Science Definition
- The rhythmic expansion and contraction of the arteries as blood is pumped through them by the heart. The pulse can be felt at several parts of the body, as over the carotid and radial arteries.
- A dose of a medication or other substance given over a short period of time, usually repetitively.
- a. A brief sudden change in a normally constant quantity, such as an electric current or field.b. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.