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velocity

noun

ve·​loc·​i·​ty və-ˈlä-sə-tē How to pronounce velocity (audio)
-ˈlä-stē
plural velocities
1
a
: quickness of motion : speed
the velocity of sound
b
: rapidity of movement
[my horse's] strong suit is grace & personal comeliness, rather than velocity Mark Twain
c
: speed imparted to something
the power pitcher relies on velocity Tony Scherman
2
: the rate of change of position along a straight line with respect to time : the derivative of position with respect to time
3
a
: rate of occurrence or action : rapidity
the velocity of historical change R. J. Lifton
b
: rate of turnover
the velocity of money

Example Sentences

particles moving at high velocities measuring the velocity of sound the velocity of a bullet
Recent Examples on the Web Like the Abrams, the K2PL is also equipped with a 120-millimeter main gun, though the gun barrel is slightly longer to impart a greater muzzle velocity. Kyle Mizokami, Popular Mechanics, 31 Aug. 2022 Eduardo Rodriguez's velocity Left-hander Eduardo Rodriguez has started two games for the Tigers since coming off the restricted list. Evan Petzold, Detroit Free Press, 31 Aug. 2022 Jerry’s promotion will result in both better short term execution as well as a higher velocity of long term innovation. Todd Spangler, Variety, 31 Aug. 2022 The three-body problem starts with knowing the initial position and velocity of three physical bodies. WIRED, 30 Aug. 2022 Other than that, all went according to plan with Eovaldi — whose velocity had taken a significant dip prior to hitting the IL — feeling a noticeable difference. Julian Mcwilliams, BostonGlobe.com, 26 Aug. 2022 The sheer volume and velocity can distract from the nefarious activity organizations need to detect. Eric Raab, Forbes, 25 Aug. 2022 Bootstrapped companies that can show data proving growth, traction and velocity will find a down market represents an incredible opportunity. Peter Pezaris, Fortune, 10 Aug. 2022 Martínez’s sinker has low-to-mid 90s velocity, requiring sharp command to avoid hard contact. Matt Kawahara, San Francisco Chronicle, 7 Aug. 2022 See More

Word History

Etymology

Middle English velocite, borrowed from Anglo-French & Latin; Anglo-French veloceté, borrowed from Latin vēlōcitāt-, vēlōcitās, from vēlōc-, vēlōx "swift, rapid" (of uncertain origin) + -itāt-, -itās -ity

Note: If going back to earlier *ueg-s-l-o-, perhaps a derivative from the base of vegēre "to give vigor to, enliven" (see vegetate) or vehere "to convey" (Indo-European *u̯eǵh-; see vehicle), assimilated to the -ōk- of ātrōx, ferōx (see atrocious, ferocious). Alternatively, a derivative *uē-lo-, from the Indo-European base *h2u̯eh1- "blow" (hence, "windlike"; see wind entry 1) has been suggested.

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of velocity was in the 15th century

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