What is "jet"

Jet \Jet\, n. [OF. jet, jayet, F. ja["i]et, jais, L. gagates, fr. Gr. ?; -- so called from ? or ?, a town and river in Lycia.] [written also jeat, jayet.] (Min.) A variety of lignite, of a very compact texture and velvet black color, susceptible of a good polish, and often wrought into mourning jewelry, toys, buttons, etc. Formerly called also black amber.

Jet ant (Zo["o]l.), a blackish European ant ( Formica fuliginosa), which builds its nest of a paperlike material in the trunks of trees.

Jet \Jet\, n. [F. jet, OF. get, giet, L. jactus a throwing, a throw, fr. jacere to throw. Cf. Abject, Ejaculate, Gist, Jess, Jut.]

1. A shooting forth; a spouting; a spurt; a sudden rush or gush, as of water from a pipe, or of flame from an orifice; also, that which issues in a jet.

2. Drift; scope; range, as of an argument. [Obs.]

3. The sprue of a type, which is broken from it when the type is cold.
   --Knight.

   Jet propeller (Naut.), a device for propelling vessels by means of a forcible jet of water ejected from the vessel, as by a centrifugal pump.

   Jet pump, a device in which a small jet of steam, air, water, or other fluid, in rapid motion, lifts or otherwise moves, by its impulse, a larger quantity of the fluid with which it mingles.

Jet \Jet\, v. i. [imp. & p. p. Jetted; p. pr. & vb. n. Jetting.] [F. jeter, L. jactare, freq. fr. jacere to throw. See 3d Jet, and cf. Jut.]

1. To strut; to walk with a lofty or haughty gait; to be insolent; to obtrude. [Obs.]

   he jets under his advanced plumes!
   --Shak.

   To jet upon a prince's right.
   --Shak.

2. To jerk; to jolt; to be shaken. [Obs.]
   --Wiseman.

3. To shoot forward or out; to project; to jut out.

Jet \Jet\, n. Same as 2d Get. [Obs.]
--Chaucer.

Jet \Jet\, v. t. To spout; to emit in a stream or jet.

A dozen angry models jetted steam.
--Tennyson.

"stream of water," 1690s, from French jet, from jeter (see jet (v.)). Sense of "spout or nozzle for emitting water, gas, fuel, etc." is from 1825. Hence jet propulsion (1867) and the noun meaning "airplane driven by jet propulsion" (1944, from jet engine, 1943). The first one to be in service was the German Messerschmitt Me 262. Jet stream is from 1947. Jet set first attested 1951, slightly before jet commuter plane flights began. Jet age is attested from 1952.

early 15c., "to prance, strut, swagger," from Middle French jeter "to throw, thrust," from Late Latin iectare, abstracted from deiectare, proiectare, etc., in place of Latin iactare "toss about," frequentative of iacere "to throw, cast," from PIE root *ye- "to do" (cognates: Greek iemi, ienai "to send, throw;" Hittite ijami "I make"). Meaning "to sprout or spurt forth" is from 1690s. Related: Jetted; jetting.

"deep black lignite," mid-14c., from Anglo-French geet, Old French jaiet "jet, lignite" (12c.), from Latin gagates, from Greek gagates lithos "stone of Gages," town and river in Lycia. As "a deep black color," also as an adjective, attested from mid-15c.

Etymology 1

1. Propelled by turbine engines. n. 1 A collimated stream, spurt or flow of liquid or gas from a pressurized container, an engine, etc. 2 A spout or nozzle for creating a jet of fluid. 3 A type of airplane using jet engines rather than propellers. 4 An engine that propels a vehicle using a stream of fluid as propulsion. 5 # A turbine. 6 # A rocket engine. 7 A part of a carburetor that controls the amount of fuel mixed with the air. 8 (context physics English) A narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon. 9 (context dated English) Drift; scope; range, as of an argument. 10 (context printing dated English) The sprue of a type, which is broken from it when the type is cold. v

2. 1 (context intransitive English) To spray out of a container. 2 (context intransitive English) To travel on a jet aircraft or otherwise by jet propulsion 3 (context intransitive English) To move (running, walking et

3. ) rapidly around 4 To shoot forward or out; to project; to jut out. 5 To strut; to walk with a lofty or haughty gait; to be insolent; to obtrude. 6 To jerk; to jolt; to be shaken. Etymology 2

   a. Very dark black in colour. n. 1 A hard, black form of coal, sometimes used in jewellery. 2 The colour of jet coal, deep grey.

1. n. an airplane powered by one or more jet engines [syn: jet plane, jet-propelled plane]

2. the occurrence of a sudden discharge (as of liquid) [syn: squirt, spurt, spirt]

3. a hard black form of lignite that takes a brilliant polish and is used in jewellery or ornamentation

4. street names for ketamine [syn: K, super acid, special K, honey oil, green, cat valium, super C]

5. an artificially produced flow of water [syn: fountain]

6. [also: jetting, jetted]

1. adj. of the blackest black; similar to the color of jet or coal [syn: coal-black, jet-black, pitchy, sooty]

2. [also: jetting, jetted]

1. v. issue in a jet; come out in a jet; stream or spring forth; "Water jetted forth"; "flames were jetting out of the building" [syn: gush]

2. fly a jet plane

3. [also: jetting, jetted]

Jet was an Australian rock band formed in 2001. The band consisted of lead guitarist Cameron Muncey, bassist Mark Wilson, and brothers Nic and Chris Cester on vocals/rhythm guitar and drums respectively. The group sold 6.5 million albums. The band's end was announced in 2012.

thumb|Pendant in Jet, Magdalenian, Marsoulas MHNT

Jet is a type of lignite, a precursor to coal, and is considered to be a minor gemstone. Jet is not considered a true mineral, but rather a mineraloid as it has an organic origin, being derived from decaying wood under extreme pressure.

The English noun "jet" derives from the French word for the same material: jaiet. Jet is either black or dark brown, but may contain pyrite inclusions, which are of brassy colour and metallic lustre. The adjective "jet-black", meaning as dark a black as possible, derives from this material.

Jet, Jets, or The Jets may refer to:

In mathematics, the jet is an operation that takes a differentiable function f and produces a polynomial, the truncated Taylor polynomial of f, at each point of its domain. Although this is the definition of a jet, the theory of jets regards these polynomials as being abstract polynomials rather than polynomial functions.

This article first explores the notion of a jet of a real valued function in one real variable, followed by a discussion of generalizations to several real variables. It then gives a rigorous construction of jets and jet spaces between Euclidean spaces. It concludes with a description of jets between manifolds, and how these jets can be constructed intrinsically. In this more general context, it summarizes some of the applications of jets to differential geometry and the theory of differential equations.

Jet is a digital magazine. As an American weekly marketed toward African-American readers, it was founded in 1951 by John H. Johnson of the Johnson Publishing Company in Chicago, Illinois. Initially billed as "The Weekly Negro News Magazine", Jet is notable for its role in chronicling the American Civil Rights movement from its earliest years, including coverage of the Emmett Till murder, the Montgomery Bus Boycott, and Martin Luther King, Jr.

Published in small digest-sized format from its inception in 1951, Jet printed in all or mostly black-and-white until its 27 December 1999 issue. In 2009, Jet's publishing format was changed; it was published every week with a double issue published once each month. Johnson Publishing Company published the final print issue, 23 June 2014, continuing solely as a digital magazine app. In 2016, Johnson Publishing sold Jet and Ebony to private equity firm Clear View Group. The new publishing company will be known as Ebony Media Corporation.

A jet is a narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon in a particle physics or heavy ion experiment. Particles carrying a color charge, such as quarks, cannot exist in free form because of QCD confinement which only allows for colorless states. When an object containing color charge fragments, each fragment carries away some of the color charge. In order to obey confinement, these fragments create other colored objects around them to form colorless objects. The ensemble of these objects is called a jet. Jets are measured in particle detectors and studied in order to determine the properties of the original quarks.

In relativistic heavy ion physics, jets are important because the originating hard scattering is a natural probe for the QCD matter created in the collision, and indicate its phase. When the QCD matter undergoes a phase crossover into quark gluon plasma, the energy loss in the medium grows significantly, effectively quenching the outgoing jet.

Example of jet analysis techniques are:

• jet reconstruction (e.g., k algorithm, cone algorithm)
• jet correlation
• flavor tagging (e.g., b-tagging).

The Lund string model is an example of a jet fragmentation model.

Jet is a fictional superhero published by DC Comics. She first appeared in Millennium #2 (January 1988), and was created by Steve Engelhart and Joe Staton.

"Jet" is a song by Paul McCartney and Wings from their album Band on the Run. Supposedly written about a jet black Labrador that McCartney owned, the song was the first British and American single to be released from the album. The song peaked at number 7 in both the British and American charts on 30 March 1974, also charting in multiple countries in Europe. It has been released on numerous compilation albums, and has since become one of the band's most well-known tracks.

Along with " Helen Wheels" and " Junior's Farm", "Jet" is another McCartney song where his primary inspiration for composing the song arose in daily life.

Jet were a glam rock band from London formed in 1974. They released one album in 1975 before splitting up, with the bulk of the band going on to become the punk/new wave band Radio Stars.

Jet is a combat flight simulator video game originally published in 1985 by subLOGIC.

Jet is the filling station brand of Phillips 66 used in Europe. Jet filling stations are located in Austria, Germany and the United Kingdom, and formerly in Denmark, Sweden and Ireland. The owner sold its stations in Belgium, the Czech Republic, Finland, Hungary, Poland and Slovakia to its Russian affiliate, Lukoil.

The Jet service station network in Ireland was acquired by Statoil in 1996. Maxol acquired 50 Jet/Statoil-branded sites as a condition of the acquisition. Statoil also acquired all Nordic stations in September 2007; however, they are still using the Jet brand name. In 2014 the Nordic stations were rebranded to the new brand name Ingo.

A jet is a stream of fluid that is projected into a surrounding medium, usually from some kind of a nozzle, aperture or orifice. Jets can travel long distances without dissipating. In the Earth's atmosphere there exist jet streams that travel thousands of kilometres.

Jet fluid has higher momentum compared to the surrounding fluid medium. In the case that the surrounding medium is assumed to be made up of the same fluid as the jet, and this fluid has a viscosity, the surrounding fluid is carried along with the jet in a process called entrainment.

Some animals, notably cephalopods, use a jet to propel themselves in water. Similarly, a jet engine as it name suggests, emits a jet used to propel rockets, aircraft, jetboats, and submarines.

Jet is a given name which may be either masculine or feminine. It is relatively common in Dutch-speaking countries, as a nickname for certain feminine given names (for example, Henriette or Mariëtte), and is pronounced in that context. It is rarer in English-speaking countries, where it is generally a masculine nickname or adopted name, pronounced .

• Jet Black (born 1938), English drummer, member of The Stranglers
• Jet Bussemaker (Mariëtte, born 1961), Dutch politician
• Jet Harris (1939–2011), English bass guitarist, member of The Shadows
• Jet Jongeling (born 1977), Dutch cyclist
• Jet Li (born 1963), Chinese martial artist and actor
• Jet Lowe, American photographer
• Jet McCoy, American cowboy, contestant in The Amazing Race 16
• Jet O'Rourke, Australian musician
• Jet Rowland (2002–2004), Australian road accident victim
• Jet van Noortwijk (Ariette, born 1968), Dutch cricketer
• Jet Zoon (born 1988), Dutch musician and composer
• Tateo Ozaki (born 1954), Japanese golfer, nicknamed "Jet"

Category:Dutch feminine given names