Definition of velocity
1a : quickness of motion : speed the velocity of soundb : rapidity of movement [my horse's] strong suit is grace & personal comeliness, rather than velocity — Mark Twainc : 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
3a : rate of occurrence or action : rapidity the velocity of historical change — R. J. Liftonb : rate of turnover the velocity of money
Examples of velocity in a Sentence
particles moving at high velocities
measuring the velocity of sound
the velocity of a bullet
Recent Examples of velocity from the Web
Feldman had been dealing with declining velocity throughout the season, including in his last start before the break.
The average fastball velocity in the game was 96.5 mph, up from 94.8 mph last year, according to MLB’s Statcast.
The average fastball velocity rises every year, and hitters have responded by essentially taking on the challenge.
The autobahn experience also confirmed the Insignia’s considerable talents as a high-speed cruiser, staying stable and composed even at the sort of velocities that would earn custodial sentences in the States.
Lower velocity runaway stars can be produced when one half of a binary pair explodes as a supernova, blasting its partner away.
In fact, no Tide player had reached that velocity in the previous two years.
Exit velocity, the speed of the ball after it's hit, is a newfangled stat MLB.com began tracking in 2015.
Sure, Faut can’t match the velocity and control of her 1952 season.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'velocity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of velocity
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 ◆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 1wind) has been suggested.
First Known Use: 15th centurySee Words from the same year
VELOCITY Defined for English Language Learners
Definition of velocity for English Language Learners
: quickness of motion
VELOCITY Defined for Kids
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