" pulse "

[Noun]  | "pulse" | \ ˈpəls \

1: the regular expansion of an artery caused by the ejection of blood into the arterial system by the contractions of the heart

2: the palpable beat resulting from such pulse as detected in a superficial artery; also : the number of individual beats in a specified time period (such as one minute)

3: rhythmical beating, vibrating, or sounding

Origin: 14th century ;

 Middle English pous, pouce, pulse, borrowed from Anglo-French & Latin; Anglo-French pous, polz, puls, borrowed from Latin pulsus "action of beating or striking, beat, stroke, beat of the heart" ("pulse" in phrase pulsus venārum/artēriārum, literally, "beating of the veins/arteries"), noun of action from pellere "to beat against, push, strike, rouse, expel, repulse," of uncertain origin;

  * Note : The etymology of pellere is problematic, because it lacks an obvious formal and semantic counterpart in other Indo-European languages. A traditional explanation derives it from a base *pel-d-, with the *-d- a present-tense formative marking an action reaching a definite termination (thus Ernout and Meillet in Dictionnaire étymologique de la langue latine, 8. édition, 1985; cf. {tender:3|tender:3}). A hypothetically related form would be Greek pállō, pállein "to poise (a missile before it is thrown), brandish, swing, shake" (Epic aorist pêlai, 3rd singular passive pálto), though semantically the comparison is weak. A base *pel-d- would correctly produce the past participle pulsus (from *poltos < *pl̥d-t-os); however the frequentative verb pultāre "to strike repeatedly," attested in Plautus alongside pulsāre, suggests that the original past participle may have been *pultus. According to an alternative hypothesis, pellere is descended from an Indo-European base *pelh2- "approach, draw near," see:n in Greek pílnamai "I draw near to, make contact with," 3rd singular aorist plêto, verbal adjective in the negated form áplētos, áplātos "unapproachable, monstrous." (The assumed semantic shift is from "approach, touch" to "push, strike.") Both Latin and Greek verbs would continue a present with nasal infix *pl̥-ne-h2-/pl̥n-h2-. These presumably are see:n also in Umbrian ampentu, apentu, ampetu, 3rd singular imperative (allegedly "touches, brings near," with the prefix an- "up, upon," but the meaning of this verb, describing the first action of an animal sacrifice in the Iguvine Tables, is quite uncertain); Old Irish ˑella in adˑella "(s/he) visits, approaches," doˑella "(s/he) turns aside, goes astray" (< *φal-na-?; e-vocalism is secondary) and eblaid "(s/he) will drive/impel," suppletive future to aigid "(s/he) drives" (< *pi-plā-); Middle Welsh el, 3rd person singular present subjunctive of mynet "to go" (< *pel-ase/o-). Note that alongside pellere there is a group of first-conjugation verbs with the same base pell- that occur only with prefixes: appellāre "to speak to, address, name," compellāre "to address, appeal to, rebuke," interpellāre "to interrupt" (see: {appeal:2|appeal:2}, {compellation|compellation}, {interpellate|interpellate}). According to P. Schrijver (The Reflexes of the Proto-Indo-European Laryngeals in Latin, Rodopi, 1991, pp. 408-12), these are a relic of an original nasal present *pel-n-a-C (< *pl̥-ne-h2- with full-grade vocalism) given a thematic suffix *-i̯e/o- in derivatives. These verbs have the common underlying sense "to address (positively or negatively)," which fits fairly well with the hypothetical meaning "approach" of the base *pelh2-. For English borrowings of prefixed forms of pellere see: {compel|compel}, {dispel|dispel}, {expel|expel}, {impel|impel}, {propel|propel}, {repel|repel}.;

[Noun]  | "pulse" 

1: the edible seeds of various crops (such as peas, beans, or lentils) of the legume family; also : a plant yielding pulse

Origin: 13th century ;

 Middle English puls, probably from Anglo-French puuiz gruel, from Latin pult-, puls, probably from Greek poltos;

[Noun]  | "pulse-jet engine" | \ ˈpəls-ˈjet- \

1: a jet engine designed to produce a pulsating thrust by the intermittent flow of hot gases

Origin: 1946 ;

[Noun]  | "pulse oximeter" 

1: a noninvasive medical device that utilizes spectrophotometry to measure the oxygen saturation of circulating arterial blood in an individual by determining the percentage of oxygenated hemoglobin pulsating through a network of blood capillaries by way of a sensor attached typically to a finger, toe, or earlobe

Origin: 1984 ;

[Noun]  | "pulse oximetry" 

1: a method that utilizes spectrophotometry to measure the oxygen saturation of circulating arterial blood by means of a pulse oximeter

2: a test using pulse oximetry

Origin: 1983 ;

[Noun]  | "electromagnetic pulse" 

1: a pulse of high-intensity electromagnetic radiation generated especially by a nuclear blast high above the earth's surface and held to disrupt electronic and electrical systems —abbreviation EMP

Origin: 1951 ;

[Noun]  | "heart/pulse rate" 

1: the number of times a heart beats in a minute

[Verb]  | "pulse" 

1: to exhibit a pulse or pulsation : throb

2: to drive by or as if by a pulsation

3: to cause to pulsate

Origin: 15th century ;

 Middle English pulsen "to throb," in part borrowed from Latin pulsāre "to strike with repeated blows, beat, (in passive) beat wildly (of the heart)," in part verbal derivative of pous, pouce, pulse {see: |pulse:1|pulse:1} {mat|pulse:1|};

[Idiom]  | "check/take/feel someone's pulse" 

1: to measure how fast someone's heart is beating

[Idiom]  | "have/keep/put one's finger on the pulse of" 

1: to be aware of the latest things that are happening in (a certain industry, area, etc.)

[Noun]  | "pulse" 

[Verb]  | "pulse"