velocity

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Now, as the velocity is assumed to be the same in both cases, the ratio between the distance (already so tremendous) of Bessel's 61 Cygni_, and that of Lord Rosse's farthest frontier, is as forty- one thousand to two hundred and fifty millions.

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Definitions (43)

Toggle American Heritage definitions American Heritage Dictionary (4)

  1. noun Rapidity or speed of motion; swiftness.
  2. noun Physics A vector quantity whose magnitude is a body's speed and whose direction is the body's direction of motion.
  3. noun The rate of speed of action or occurrence.

Toggle Century definitions Century Dictionary (37)

Toggle GNU Webster definitions GNU Webster's 1913 (1)

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Examples

  • Now, as the velocity is assumed to be the same in both cases, the ratio between the distance (already so tremendous) of Bessel's 61 Cygni_, and that of Lord Rosse's farthest frontier, is as forty- one thousand to two hundred and fifty millions. —  Narrative and Miscellaneous Papers
  • Two observations stand before us representing empirically established facts: one, that in so far as a finite velocity has been measured or calculated from other observations, nothing is known about the existence or magnitude of such a velocity except within the boundaries of the dynamic realm constituted by the earth's presence in the universe; the other, that this velocity is a 'group'-velocity, that is, the velocity of the front of a light-beam in process of establishment. —  Man or Matter
  • Under the foregone conclusion that light itself has a definite velocity, and that this velocity is the same throughout the universe, —  Man or Matter
  • Now, as the velocity is assumed to be the same in both cases, the ratio between the distance (already so tremendous) of Bessel's 61 —  Narrative and Miscellaneous Papers
  • Should have waited for Loam, instead. —  The Gates of Thorbardin
 

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Roget's II Roget's II: The New Thesaurus

Used in the same context Used in the Same Context

speed ·  density ·  temperature ·  frequency ·  acceleration ·  momentum ·  altitude ·  intensity ·  rapidity ·  flow ·  dimension ·  magnitude
Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Middle English velocite, from Old French, from Latin vēlōcitās, from vēlōx, vēlōc-, fast; see weg- in Indo-European roots.

Toggle Century etymologies Century Dictionary (1)

  1. from Old French velocite, French vélocité = Spanish velocidad = Portuguese vclocidade = Italian velocità, from Latin velocita (t-)s, swiftness, speed, from velox (veloc-), swift, akin to volare, fly: see volant.
 

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/vəˈlɑsəti/
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