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In everyday use and in kinematics, the speed of an object is the magnitude of its velocity it is thus a scalar quantity. The average speed ...

Speed | Define Speed at Dictionary.com


Speed definition, rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of light; the speed of sound. See more.

Speed | Definition of Speed by Merriam-Webster


the rate at which someone or something moves or travels. : the rate at which something happens or is done. : the quality of being quick. Source: ...

speed - Dictionary Definition : Vocabulary.com


Speed can be a noun or verb. As a noun, it's an indicator of pace, as in the speed of a car. As a noun, it's also a drug that keeps you awake, very awake.

Definition of Speed - Math is Fun


How fast something is moving. Measured as distance traveled per unit of time. Example: The speed of these cars is over 150 kilometers per hour (150 km/h).

Speed - definition of speed by The Free Dictionary


Physics The rate or a measure of the rate of motion, especially: a. Distance traveled divided by the time of travel. b. The limit of this quotient as the time of travel ...

Speed dictionary definition | speed defined - YourDictionary


A sign shows this cars speed. Licensed from iStockPhoto. noun. Speed is a way of measuring how quickly something is moving or being done, or something ...

Speed Fitness - Topend Sports


Speed Fitness Component. What is Speed? Sports Definition: Speed is the ability to move quickly across the ground or move limbs rapidly to grab or throw.

speed Definition in the Cambridge English Dictionary


speed definition, meaning, what is speed: how fast something moves: . Learn more.

Speed Definition - Glossary of Physics Terms - About.com


Definition of speed. ... Speed. 2. One-Dimensional Kinematics: Motion Along a… 3 ... r is the rate, or speed (sometimes denoted as v, for velocity, as in this ...

rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of light; the speed of sound.
relative rapidity in moving, going, etc.; rate of motion or progress: full speed ahead.
full, maximum, or optimum rate of motion: The car gets to speed in just nine seconds.
Automotive. a transmission gear ratio.
Slang. a stimulating drug, as caffeine, ephedrine, or especially methamphetamine or amphetamine.
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speed | Define speed at Dictionary.com
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