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pulse

 - 12 dictionary results

pulse

1[puhls] noun, verb, pulsed, puls⋅ing.
–noun
1. the regular throbbing of the arteries, caused by the successive contractions of the heart, esp. as may be felt at an artery, as at the wrist.
2. a single pulsation, or beat or throb, of the arteries or heart.
3. the rhythmic recurrence of strokes, vibrations, or undulations.
4. a single stroke, vibration, or undulation.
5. Electricity. a momentary, sudden fluctuation in an electrical quantity, as in voltage or current.
6. Physics. a single, abrupt emission of particles or radiation.
7. a throb of life, emotion, etc.
8. vitality.
9. the general attitude, sentiment, preference, etc., as of the public.
–verb (used without object)
10. to beat or throb; pulsate.
11. to beat, vibrate, or undulate.
12. Physics. to emit particles or radiation periodically in short bursts.
–verb (used with object)
13. to cause to pulse.
14. Medicine/Medical. to administer (medication) in interrupted, often concentrated dosages to avoid unwanted side effects.

Origin:
1300–50; < L pulsus a beat, equiv. to *peld-, base of pellere to set in motion by beating or striking (cf. impel ) + -tus, suffix of v. action, with dt < s and backing and raising of e before velar l; r. ME pous < MF < L, as above

pulse

2[puhls]
–noun
1. the edible seeds of certain leguminous plants, as peas, beans, or lentils.
2. a plant producing such seeds.

Origin:
1250–1300; ME puls < L: thick pap of meal, pulse. See poultice
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pulse 1   (pŭls)   
n.  
  1. The rhythmical throbbing of arteries produced by the regular contractions of the heart, especially as palpated at the wrist or in the neck.

    1. A regular or rhythmical beating.

    2. A single beat or throb.

    3. A brief sudden change in a normally constant quantity: a pulse of current; a pulse of radiation.

    4. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.

  2. Physics

    1. A brief sudden change in a normally constant quantity: a pulse of current; a pulse of radiation.

    2. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.

  3. 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.)

intr.v.   pulsed, puls·ing, puls·es
  1. To pulsate; beat: "The nation pulsed with music and proclamation, with rages and moral pretensions" (Lance Morrow).

  2. Physics To undergo a series of intermittent occurrences characterized by brief, sudden changes in a quantity.


[Middle English, from Old French, from Latin pulsus, from past participle of pellere, to beat; see pel-5 in Indo-European roots.]
pulse 2   (pŭls)   
n.  
  1. The edible seeds of certain pod-bearing plants, such as peas and beans.

  2. A plant yielding these seeds.


[Middle English pols, from Old French, from Latin puls, pottage of meal and pulse, probably ultimately from Greek poltos.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

pulse  (1)
"a throb, a beat," c.1330, from O.Fr. pous (c.1175), from L. pulsus (in pulsus venarum "beating from the blood in the veins"), pp. of pellere "to push, drive," from PIE *pel- "to shake, swing" (cf. Gk. pallein "to weild, brandish, swing," pelemizein "to shake, cause to tremble"). The verb meaning "to beat, throb" is first attested 1559.

pulse  (2)
"peas, beans, lentils," 1297, from O.Fr. pols, from L. puls "thick gruel," probably via Etruscan, from Gk. poltos "porridge."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 1pulse
Pronunciation: 'p&ls
Function: noun
1 a : a regularly recurrent wave of distension in arteries that results fromthe progress through an artery of blood injected into the arterial system at each contraction of the ventricles of the heart b : the palpable beat resulting from such pulse as detectedin a superficial artery (as the radial artery) pulse>; also : the number of such beats in a specified period of time (as one minute) pulseof 70>
2 :
PULSATION
3 a : a transient variation of a quantity (as electriccurrent or voltage) whose value is normally constant —often used of current variations produced artificially and repeated either with a regular period or according to some code b : an electromagnetic wave or modulation thereof having brief duration c : a brief disturbance transmitted through a medium
4 : a dose of a substanceespecially when applied over a short period of time pulses of intravenous methylprednisolone>

Main Entry: 2pulse
Function: verb
Inflected Forms: pulsed; puls·ing
intransitive senses
: to exhibit a pulse or pulsationpulse transitive senses
1 : to cause to pulsate
2 a : to produce or modulate (as electromagnetic waves) in the form of pulses <pulsedwaves> b : to cause (an apparatus) to produce pulses
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

pulse (pŭls)
n.
The rhythmical dilation of arteries produced when blood is pumped outward by regular contractions of the heart, especially as palpated at the wrist or in the neck.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
pulse   (pŭls)  Pronunciation Key 
  1. 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.

  2. A dose of a medication or other substance given over a short period of time, usually repetitively.

    1. A brief sudden change in a normally constant quantity, such as an electric current or field.

    2. Any of a series of intermittent occurrences characterized by a brief sudden change in a quantity.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Bible Dictionary

Pulse

(Dan. 1:12, 16), R.V. "herbs," vegetable food in general.

Easton's 1897 Bible Dictionary
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Idioms & Phrases

pulse

see take the pulse of.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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