pulse Hear it!

pulse¹ Definition

pulse (puls)

noun

  1. the regular beating in the arteries, caused by the contractions of the heart
  2. any beat, signal, vibration, etc. that is regular or rhythmical
  3. the perceptible underlying feelings of the public or of a particular group
  4. a variation, characterized by a rise, limited duration, and decline, of a quantity whose value normally is constant; specif.,
    1. Elec. a brief surge of voltage or current
    2. Radio a very short burst of electromagnetic waves

Etymology: ME pous < OFr < L pulsus (venarum), beating (of the veins) < pulsus, pp. of pellere, to beat: see felt

intransitive verb pulsed, puls′·ing

to pulsate; throb

transitive verb

  1. to cause to pulsate
  2. to drive (an engine, etc.) by pulses
  3. Elec. to apply pulses to
  4. Radio to modify (an electromagnetic wave) by means of pulses

pulse¹ Related Forms

puls′er noun

pulse² Definition

pulse (puls)

noun

  1. the edible seeds of peas, beans, lentils, and similar plants having pods
  2. any leguminous plant

Etymology: ME pous < OFr pouls < L puls (gen. pultis), a pottage made of meal or pulse, prob. < Gr poltos < IE base *pel-, dust, meal > L pollen, pulvis

pulse Synonyms

pulse

n.

pulsation, vibration, oscillation, throb; see beat 2.

pulse Telecom 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).

pulse Usage Examples

Object

  • laser: They joined the Innovation Center in 2003 to develop a new range of RGB pulsed lasers for the holographic industry.
  • deposition: We produce functional thin film materials using the technique of pulsed laser deposition.

Converse of object

  • quicken: The reference " RS " will quicken the pulse of Porsche connoisseurs.
  • emit: Bats emit high pitch pulses which are too high for the human ear to hear.
  • throb: He had positive bodily pain a violent headache, and a throbbing intermittent pulse.

Adjective modifier

  • ultrashort: Further system development should lead to the generation of ultrashort pulses at high average power levels and 100 kHz repetition rates.
  • electromagnetic: Simply plug into a standard electrical socket to emit an ultrasonic sound and an electromagnetic pulse.
  • femtosecond: A number of projects are available based on spectral-temporal measurements of femtosecond pulses interacting with different photonic materials and devices.
  • ultrasonic: An essential part of all ultrasonic flow meters is the circuit or algorithm that determines the time of arrival of the ultrasonic pulse.
  • tinned: You can also reduce the salt content of tinned pulses and veg by draining and rinsing them under running water.
  • transmitted: Notice in Fig 11 that the time during which echoes may be displayed on the c.r.t. is limited to the interval between transmitted pulses.

Modifies a noun

  • oximetry: On review, the advisors thought monitoring pulse oximetry was specifically indicated in a further 27 cases.
  • oximeter: The next step is to design a pulse oximeter in which this extra measuring facility is already an integral part.
  • oximeters: The four pulse oximeters also supplied will be used daily in assessing Acute Mountain Sickness and acclimatization.
  • modulation: Our little coding technique is called pulse code modulation.
  • width: Pulse width of vertical synchronization signal is fixed to 16 rasters cycle.
  • racing: However, being a fairly big car with a lot of boot space, the performance was never going to set anyoneâs pulse racing.

Noun used with modifier

  • sync: A vertical sync pulse is generated near the end of every frame.
  • laser: In addition, the propagation of intense laser pulses through capillary tubes was undertaken.
  • excitation: Conventional inversion recovery methods for measuring T 1 use a slice selective inversion pulse, followed a time TI later by an excitation pulse.