1. The speed at which something moves, happens, or is done: Because the two cars were both driving in exactly the same direction at 60 miles per hour, they were both traveling at the same velocity.
2. A measure of the rate of change in position of something with respect to time, involving speed and direction: A rain drop’s size, and not its density, determines the velocity of its fall.
3. Etymology: from Latin velocitatem; from velocitas, from velox, veloc-, "swift, speedy, rapid, quick". © ALL rights are reserved.

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