9 Grammatical Pitfalls


[vuh-los-i-tee] /vəˈlɒs ɪ ti/
noun, plural velocities.
rapidity of motion or operation; swiftness; speed:
a high wind velocity.
Mechanics. the time rate of change of position of a body in a specified direction.
the rate of speed with which something happens; rapidity of action or reaction.
Origin of velocity
1540-50; < Latin vēlōcitās speed. See velocipede, -ty2
1. See speed. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for velocity
  • Wheel-speed sensors and an accelerometer measure its velocity and a gyroscope controls equilibrium and direction.
  • The result is a riveting sensation of narrative velocity.
  • They do not suggest the narrative velocity and emotional and moral richness of what comes after that.
  • The velocity of the debate sped up during the last two years.
  • Gesell argued that a higher velocity of money helps combat deflation.
  • His admission of ignorance reflects genuine puzzlement with the economy's failure to reach what he likes to call escape velocity.
  • Government spending also prevents deflation by stemming the downward spiral in the velocity of money.
  • While the drop in velocity was due to early-season injuries, his struggles with command have now raised some cause for concern.
  • It isn't the terminal velocity that's so impressive, it's how quickly and effortlessly you get there.
  • Worker mobility gives the tech industry fluidity, velocity, and energy.
British Dictionary definitions for velocity


noun (pl) -ties
speed of motion, action, or operation; rapidity; swiftness
(physics) a measure of the rate of motion of a body expressed as the rate of change of its position in a particular direction with time. It is measured in metres per second, miles per hour, etc u, v, w
(physics) (not in technical usage) another word for speed (sense 3)
Word Origin
C16: from Latin vēlōcitās, from vēlōx swift; related to volāre to fly
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for velocity

1550a, from Latin velocitatem (nominative velocitas) "swiftness, speed," from velox (genitive velocis) "swift," of uncertain origin, perhaps related to vehere "carry" (see vehicle), or from the same root as vegetable (see vigil).

Online Etymology Dictionary, © 2010 Douglas Harper
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velocity in Medicine

velocity ve·loc·i·ty (və-lŏs'ĭ-tē)
Rapidity or speed of motion; specifically, the distance traveled per unit time.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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velocity in Science
The speed and direction of motion of a moving body. Velocity is a vector quantity. Compare acceleration, speed.

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

velocity definition

The vector giving the speed and direction of motion of any object.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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