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.
Definition. The Italian physicist Galileo Galilei is credited with being the first
to measure speed by considering the distance ...
Define speed: the rate at which someone or something moves or travels—usage,
Speed most often describes acceleration or a high rate of motion. When
something picks up too much speed, it can run off course, like a kid on a bike
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
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 definition, meaning, what is speed: how fast something moves: . Learn
Definition of speed in English: noun. 1 [ mass noun ] The rate at which someone
or something moves or operates or is able to move or operate: we turned on to ...
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.
Definition: Distance travelled per unit time. Speed is the scalar quantity that is the
magnitude of the velocity vector. The most common way to calculate the ...