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Longman Dictionary of Contemporary English
velocity
noun
COLLOCATIONS FROM OTHER ENTRIES
escape velocity
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
angular
▪ When considering circular motion it is often easier to work in terms of the angular velocity rather than ordinary linear velocity.
▪ The Lift's wide, so the angular velocity is higher on the outside.
constant
▪ The 109 V8 has constant velocity joints within its hubs.
▪ Our model requires two sites of learning so that constant head velocity can generate constant eye velocity.
▪ According to an experiment carried out in 1897, light always travels at the same constant velocity.
▪ The mass column density along a line-of-sight for a constant outflow at velocity v is therefore.
▪ Reciprocal motion Reciprocal motion, positive and negative at constant mean velocity, is unnerving, mechanistic and inhuman.
different
▪ Notice that one frame in free fall can have a very different velocity and acceleration from another such frame.
▪ How is it that observers moving with different uniform velocities can be equivalent with respect to Minkowskian geometry?
high
▪ The true velocities may be higher than the velocities measured in projection.
▪ There were early experiments, some of them successful, in which objects moving at high velocity were arrested by the camera.
▪ The smaller the proportion, the lower the demand and obviously the higher is velocity.
▪ He was in no hurry, and it was dangerous to move at a high velocity so near the ship.
▪ Very high velocities have been observed in the movement of spray rising from impacts of this type.
▪ This could be a direct consequence of the high internal velocity dispersion in the molecular clouds.
low
▪ What ever the bone type, however, Dodson found that very low water velocities were sufficient to move small mammal bones.
▪ Throughout the campaign troops have been issued with various flak jackets which give a degree of protection against low velocity rounds.
maximum
▪ A maximum velocity at the equator reduces to a theoretical nil at the poles.
▪ The maximum possible impact velocity for a solar system body striking Earth is a little more complicated to calculate.
▪ The motor velocity increases under the influence of the positive torque and the equilibrium position is attained with maximum velocity.
▪ Accelerating violence and horror eventually hit maximum velocity and warp into nonsense, no matter how erudite the script.
mean
▪ The mean velocity also varies vertically, and we shall confine attention to two-dimensional flow.
▪ Firstly, the mean velocity profile may be liable to local instability, somewhat analogous to instability of laminar flow.
▪ The turbulence is being kept going by the working of this against the mean velocity gradient.
▪ The Figure shows the mean height velocity during each year according to severity of gastrointestinal symptoms.
▪ No differences in mean linear growth velocities were found between males and females or among patients stratified by anatomical localisation of disease.
▪ Reciprocal motion Reciprocal motion, positive and negative at constant mean velocity, is unnerving, mechanistic and inhuman.
▪ In most turbulent flows, for example, only the mean velocity can be measured with a Pitot tube.
relative
▪ That way it might be easier to match relative velocities for a few seconds.
▪ Their impact energy per gram increases with the square of their relative velocity.
▪ When this Doppler shift is converted to relative velocity it turns out that the velocity varies sinusoidally with time.
■ NOUN
escape
▪ As the star shrank, the gravitational field at the surface would become stronger and the escape velocity would increase.
▪ Some of the gases from the explosion and fireball may reach escape velocity.
▪ This critical speed is called the escape velocity.
▪ A significant fraction of their water content can emerge from the explosion at a speed below the escape velocity of Mercury.
▪ As the radius of the star is reduced the escape velocity increases until eventually it reaches the velocity of light.
▪ In fact, it is traveling well above escape velocity.
▪ Jupiter is a very massive planet, and its escape velocity is correspondingly high.
▪ Even modest-sized impactors can blast atmospheric gases off of Mars at speeds above escape velocity.
fluctuations
▪ The investigation of the flow past obstacles or of boundary layers requires a uniform flow with minimal velocity fluctuations.
▪ At large r the velocity fluctuations become independent of one another and R asymptotically approaches 0.
▪ Figure 21.4 shows oscillograms of the velocity fluctuations at different distances from the centre line of a wake.
▪ Figure 24.9 shows vertical velocity fluctuations in a different Bénard experiment.
▪ In principle, of course, correlations involving the pressure fluctuations as well as the velocity fluctuations may be formulated.
▪ The flow outside the interface, although called non-turbulent, does involve velocity fluctuations.
▪ This term represents the action of the velocity fluctuations on the mean flow arising from the non-linearity of the Navier-Stokes equation.
▪ However, these velocity fluctuations are entirely irrotational and are dynamically quite different from turbulent fluctuations.
profile
▪ The final technique for producing a velocity profile involves a voltage.controlled oscillator with the controlling voltage generated by an analogue circuit.
▪ Firstly, the mean velocity profile may be liable to local instability, somewhat analogous to instability of laminar flow.
▪ These changes arise from changes in the laminar velocity profile.
▪ It is likely that these coherent structures originate through an intermittent instability of the velocity profile.
▪ The look.up table entries can be calculated, using the methods described in Section 6.3 to determine the optimum velocity profile.
▪ Figure 21.26 shows velocity profiles at two distances downstream from the start of the heated section.
▪ Simultaneously, they interact with the mean flow, so that the velocity profile also has three-dimensional variations.
▪ Derive the velocity profile for optimum acceleration of this system.
wave
▪ Calculations of frequency and wave velocity of motility could be derived directly from the screen.
■ VERB
determine
▪ In consequence the use of sedimentation columns or tubes to determine the fall velocities of sediment particles has become very popular.
▪ The look.up table entries can be calculated, using the methods described in Section 6.3 to determine the optimum velocity profile.
give
▪ Maintaining a given velocity round a curve requires acceleration towards the centre of curvature.
increase
▪ A spacecraft at point A carries out a burn that increases its horizontal velocity.
▪ In the Jupiter fly-by, the ship had used the gravitational field of the planet to increase her velocity.
▪ This is exactly the case of NBFIs increasing velocity that we discussed above.
▪ The subsequent path it takes will depend on whether the A V increased or decreased the velocity.
▪ The wind had increased in velocity and was now a low, angry howl.
measure
▪ The more precisely you measure the position of a particle, the less precisely you can measure its velocity, and viceversa.
move
▪ There were early experiments, some of them successful, in which objects moving at high velocity were arrested by the camera.
▪ He was in no hurry, and it was dangerous to move at a high velocity so near the ship.
▪ How is it that observers moving with different uniform velocities can be equivalent with respect to Minkowskian geometry?
reach
▪ As the radius of the star is reduced the escape velocity increases until eventually it reaches the velocity of light.
▪ Some of the gases from the explosion and fireball may reach escape velocity.
▪ As the sun shrinks it rotates faster, and flings off its outer, much cooler shell when it reaches escape velocity.
EXAMPLES FROM OTHER ENTRIES
▪ a beam of high velocity electrons
▪ an experiment to try to predict the velocity of a moving object
▪ the velocity of electrons
▪ This instrument is used for measuring wind velocity.
EXAMPLES FROM CORPUS
▪ Figure 21.4 shows oscillograms of the velocity fluctuations at different distances from the centre line of a wake.
▪ In addition, there is no difference in velocity between movements which are long and those which are short.
▪ Jupiter is a very massive planet, and its escape velocity is correspondingly high.
▪ Momentum is mass times velocity, so both factors influence the size of centripetal force.
▪ The pressure of the expanding gas gets converted to velocity.
▪ This latter emission is a well-known indicator of shock activity for shock velocities of up to several hundred kilometres a second.
The Collaborative International Dictionary
Velocity

Velocity \Ve*loc"i*ty\, n.; pl. Velocities. [L. velocitas, from velox, -ocis, swift, quick; perhaps akin to v?lare to fly (see Volatile): cf. F. v['e]locit['e].]

  1. Quickness of motion; swiftness; speed; celerity; rapidity; as, the velocity of wind; the velocity of a planet or comet in its orbit or course; the velocity of a cannon ball; the velocity of light.

    Note: In such phrases, velocity is more generally used than celerity. We apply celerity to animals; as, a horse or an ostrich runs with celerity; but bodies moving in the air or in ethereal space move with greater or less velocity, not celerity. This usage is arbitrary, and perhaps not universal.

  2. (Mech.) Rate of motion; the relation of motion to time, measured by the number of units of space passed over by a moving body or point in a unit of time, usually the number of feet passed over in a second. See the Note under Speed.

    Angular velocity. See under Angular.

    Initial velocity, the velocity of a moving body at starting; especially, the velocity of a projectile as it leaves the mouth of a firearm from which it is discharged.

    Relative velocity, the velocity with which a body approaches or recedes from another body, whether both are moving or only one.

    Uniform velocity, velocity in which the same number of units of space are described in each successive unit of time.

    Variable velocity, velocity in which the space described varies from instant, either increasing or decreasing; -- in the former case called accelerated velocity, in the latter, retarded velocity; the acceleration or retardation itself being also either uniform or variable.

    Virtual velocity. See under Virtual.

    Note: In variable velocity, the velocity, strictly, at any given instant, is the rate of motion at that instant, and is expressed by the units of space, which, if the velocity at that instant were continued uniform during a unit of time, would be described in the unit of time; thus, the velocity of a falling body at a given instant is the number of feet which, if the motion which the body has at that instant were continued uniformly for one second, it would pass through in the second. The scientific sense of velocity differs from the popular sense in being applied to all rates of motion, however slow, while the latter implies more or less rapidity or quickness of motion.

    Syn: Swiftness; celerity; rapidity; fleetness; speed.

Douglas Harper's Etymology Dictionary
velocity

early 15c., from Latin velocitatem (nominative velocitas) "swiftness, speed," from velox (genitive velocis) "swift, speedy, rapid, quick," of uncertain origin, perhaps related to vehere "carry" (see vehicle), or from the same root as vigil.

Wiktionary
velocity

n. 1 (context physics English) A vector quantity that denotes the rate of change of position with respect to time, or a speed with the directional component. 2 rapidity of motion. 3 The rate of occurrence. 4 (context economics English) The number of times that an average unit of currency is spent during a specific period of time.

WordNet
velocity

n. distance travelled per unit time [syn: speed]

Wikipedia
Velocity (disambiguation)

Velocity is a quantity in physics that is related to speed.

Velocity may also refer to:

  • Velocity (album), by The Vels
  • Velocity (comics), a comic-book character
  • Velocity (memory cache), from Microsoft
  • Velocity (newspaper), in Louisville, Kentucky
  • Velocity (novel), by Dean Koontz
  • Velocity (software development), a measure of productivity
  • Velocity (TV channel), a Discovery Communications channel
  • Velocity (video game), a PlayStation game
  • Velocity SE, an entry-level homebuilt aircraft
  • Velocity XL, a high-performance homebuilt aircraft
  • Apache Velocity, a Java template engine
  • USS Velocity, one of several U.S. Navy warships
  • WWE Velocity, a wrestling television show
  • Velocity of money, a monetary economics concept
  • Velocity Tower, a tower in Sheffield
  • Velocity, a MIDI message reflecting how fast a key is pressed
  • Velo-city, a series of cycle planning conferences
Velocity (novel)

Velocity is a novel by Dean Koontz first published in 2005. Set in Napa County, California, it is about a man in his thirties who takes the law into his own hands when, out of the blue, he is threatened by an anonymous adversary. The "words of wisdom" with which the novel is interspersed are direct quotations from the writings of T. S. Eliot.

Velocity (comics)

Velocity, (real name Carin Taylor) is an Image Comics/ Top Cow Productions character from the comic series Cyberforce, created by Marc Silvestri in 1992. She is one of, if not the main character in the Cyberforce series, and often serves as the reader’s guide or eyes through the story arcs. Most of the early story arcs focused on her burgeoning friendship with the members of Cyberforce, and her struggle through meta-human teenage development. She is the younger sister of Ballistic.

Velocity (album)

Velocity is the first album recorded by The Vels ( Alice Cohen, Chris Larkin and Charles Hansen).

"Velocity" was published in 1984 under the Mercury Records label, and was produced by Steven Stanley.

Velocity (memory cache)

Velocity was the code name for a distributed key-value cache platform for in-memory caches spread across multiple systems, developed by Microsoft. It is now incorporated as the caching element of Microsoft's AppFabric.

Velocity (software development)

Velocity is a capacity planning tool sometimes used in agile software development. Velocity tracking is the act of measuring said velocity. The velocity is calculated by counting the number of units of work completed in a certain interval, the length of which is determined at the start of the project.

Velocity (newspaper)

Velocity was a free, weekly magazine published between December 3, 2003 and June 15, 2011, by The Courier-Journal of Louisville, Kentucky.

The full-color tabloid was distributed at 1,800 locations in a 13-county area in Kentucky and Southern Indiana.

Velocity was widely seen as an attempt by the Courier-Journal and its parent company, Gannett, to gain some of the market dominated by the Louisville Eccentric Observer, an alternative newsweekly.

Velocity targeted the 25-to-34-year-old age demographic. It was consciously non-political, although it occasionally covered hot-button issues such as the Iraq War, local and national elections, the ban on public smoking in Louisville, and gay life.

Regular weekly features included "The Bar Hopper", in which a local tavern was profiled; "The Party Crasher", a photo-story from the weekend's parties; and "What I'm Into", a mini-profile of a local person.

Velocity was discontinued during a round of budget cuts by Gannett.

Velocity (TV network)

Velocity (formerly HD Theater and originally Discovery HD Theater) is an American high-definition, commercial-based, cable and satellite television network owned by Discovery Communications. The network specializes in nonfiction programming, focusing on cars, and also sports (particularly motorsports), leisure, and other topics targeted at men ages 18 to 54.

As of February 2015, approximately 62.3 million American households (53.5% of households with television) receive Velocity.

Velocity

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion (e.g. to the north). Velocity is an important concept in kinematics, the branch of classical mechanics that describes the motion of bodies.

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value ( magnitude) of velocity is called "speed", being a coherent derived unit whose quantity is measured in the SI (metric) system as metres per second (m/s) or as the SI base unit of (m⋅s). For example, "5 metres per second" is a scalar (not a vector), whereas "5 metres per second east" is a vector.

If there is a change in speed, direction, or both, then the object has a changing velocity and is said to be undergoing an acceleration.

Velocity (video game)

Velocity is a shoot 'em up video game developed by FuturLab for the PlayStation 3, PlayStation Portable, and PlayStation Vita as a PlayStation mini. The developers signed with Sony to create new titles for the PlayStation Vita. A sequel titled Velocity 2X was released on September 2, 2014 for PlayStation 4 and PlayStation Vita, and on August 19, 2015 for Steam and Xbox One.

Velocity (JavaScript library)

Velocity is a cross-platform JavaScript library designed to simplify the client-side scripting of website animation. Velocity is free, open-source software licensed under the MIT License. It is the most popular open source web animation engine.

Velocity's syntax is designed to make it easier to create complex animations for HTML and SVG elements. In addition to its workflow benefits, Velocity provides animation performance that is competitive with CSS-based animation. Velocity achieves its performance by maintaining an internal cache of animation states and minimizing "layout thrashing," the undesirable behavior that web browsers undergo when visually updating at a fast rate. Altogether, its workflow and performance benefits allow Velocity to be used for sophisticated animation programming that can be integrated into both web and mobile applications. Its broad browser and device support make it ideal for large enterprise distributions that must support low-powered devices.

Velocity is used to power the user interfaces of many notable websites, including those of Uber, Samsung, WhatsApp, Tumblr, HTC, Mazda, and Microsoft Windows. It is one of the most favorited projects on the code hosting service GitHub. In 2015, Velocity was nominated for Open Source Project of the Year by The Net Awards.

Usage examples of "velocity".

It would accelerate to relativistic velocities between Magaria and Zanshaa, then broadcast its coded contents to the capital.

 Naxid missiles, Martinez realized, accelerated to relativistic velocities outside the system, then fired through the wormhole along the route they knew Chenforce had to take.

She was trapped without a ship or a radio aboard an asteroid that was accelerating smoothly to absurdly high velocities by means she could not understand.

The propeller ceased to revolve, and the aeroplane began to plunge downward with fearful velocity.

An automatic rheostat must have been mounted to the speaker, for the volume rose steadily, until the noise of the storm wind filled the office, a blast of rushing airlike the sounds of an experimental wind tunnel at maximum velocity.

The three cactacae are appalled at this velocity and control that border on thaumaturgy.

All that I can remember is, that on every ascensional motion, we were hoisted up with ever increasing velocity, as if we had been launched from a huge projectile.

The boojum registered the number, velocity, mass, and origin of the small ships, as well as noting the tell-tale hydrogen torches propelling them.

Despite all the evidence that I presented to the contrary, Chubby could never quite shake, off the belief that the velocity and range of a bullet depended upon how hard one pulled the trigger - and Chubby intended that his bullets go very fast and very far indeed.

The screen was apparently in itself a coign of vantage, flying through space with the velocity of light, and the watchers gasped involuntarily and drew themselves together as with that unthinkable speed they flashed down toward the surface of Callisto.

H-bomb crane technique velocity impossibly equals speed minus girth on this turf, earthless spinner.

I puzzled out at last that my best chance would be to drop back towards the moon as near as I dared in order to gather velocity, then to shut my windows, and fly behind it, and when I was past to open my earthward windows, and so get off at a good pace homeward.

I shut all but an inch or so of earthward window, and dropped with a slackening velocity.

I dared in order to gather velocity, then to shut my windows, and fly behind it, and when I was past to open my earthward windows, and so get off at a good pace homeward.

Every loose article in every heptagon had long since been stored in its individual shock-proof compartment, and now every Vorkul coiled his entire body in fierce clasp about mighty horizontal bars: for the entire kinetic energy of the untold millions of tons of mass comprising the cone, at the terrific measure of its highest possible velocity, was to be hurled upon those unbreakable linkages of force which bound the trussed aggregation of Vorkulian fortresses to the deeply-buried intrenchments of the hexans.