Definition of velocity in English:

velocity

noun

  • 1The speed of something in a given direction.

    ‘the velocities of the emitted particles’
    • ‘Maximum wind velocity reaches 20-25 m/s.’
    • ‘Similarly, if two objects are moving with the same velocity, one with twice the mass of the other also has twice the momentum.’
    • ‘In 1660, together with Borelli, Viviani measured the velocity of sound by timing the difference between the flash and the sound of a cannon.’
    • ‘However, if we can measure the distance to the Sun we can also calculate the velocity of the Earth relative to the Sun.’
    • ‘In many cases, air resistance will produce a drag force which is proportional to the velocity squared.’
    • ‘Calculating the angular velocity of the Earth is a deceptively easy task.’
    • ‘Clearly, much depends on the direction and magnitude of the velocity and of the strength of the gravitational field.’
    • ‘Roller coasters are also good demonstrators of speed, velocity, and acceleration.’
    • ‘Accelerometers measure changes in the velocity of the object to which they are attached.’
    • ‘If an object is moving in one direction without a force acting on it, then it continues to move in that direction with a constant velocity.’
    • ‘He noticed Venus move, he was able to determine its direction and its velocity and very importantly he was able to determine its angular diameter.’
    • ‘The further away from the center of rotation that the torque is applied the more velocity it causes.’
    • ‘A rain droplet's readiness to fall and its fall velocity are not controlled by the density of the droplet, but by its size.’
    • ‘Hubble discovered that the galaxies are moving away from us with a velocity proportional to their distance.’
    • ‘It dealt only with a specific type of motion: objects moving at a constant velocity.’
    • ‘Anti-matter has mass and when mass moves at a high velocity, there is an overall increase in energy.’
    • ‘Wind shear velocities have been measured to 212 knots.’
    • ‘His average velocity on the fastball was ninety miles per hour on the button.’
    • ‘The two bodies will meet at a relative velocity of 10.3 kilometers per second.’
    • ‘Since a change in either speed OR direction means a change in velocity, the object's velocity is not constant.’
    1. 1.1 (in general use) speed.
      ‘the tank shot backwards at an incredible velocity’
      • ‘Scientists and inventors are unraveling new technology at incredible velocity.’
      • ‘The velocity of change in today's economy requires a steady commitment to your fundamental values.’
      • ‘Having started his corporate career with maximum velocity, Yang now runs another company called Yahoo!’
      • ‘But you don't have to be a dot-com executive to see how the Internet accelerates business velocity.’
      • ‘The bolt left the crossbow with amazing velocity, striking the target with near-perfect accuracy.’
      • ‘The film has nail-biting stunts performed at such velocity you're pinned to the back of your chair just watching.’
      • ‘Medical advances aside, almost every technological progress has been about velocity, about the simple process of speeding things up.’
      • ‘A gauss rifle is a rifle that throws an iron slug at an incredibly high velocity.’
      speed, pace, rate, tempo, momentum, impetus
      View synonyms
    2. 1.2Economics The rate at which money changes hands within an economy.
      • ‘Time and money appear as commensurate albeit inverse values because of the effect of the velocity of circulation on the accumulation of capital.’
      • ‘The trouble is that all these measures of money cannot be relied on because the velocity of money changes.’
      • ‘John Maynard Keynes challenged the theory in the 1930s, saying that increases in money supply lead to a decrease in the velocity of circulation and that real income, the flow of money to the factors of production, increased.’
      • ‘The velocity of circulation was assumed to be unchanged.’
      • ‘He assumed no international trade effects, an unchanged money supply and a constant velocity of circulation.’

Origin

Late Middle English: from French vélocité or Latin velocitas, from velox, veloc- ‘swift’.

Pronunciation

velocity

/vɪˈlɒsɪti/