velocity Hear it!

velocity definition

ve·loc·ity (və läs′ə tē)

noun pl. velocities -·ties

  1. quickness or rapidity of motion or action; swiftness; speed
    1. rate of change of position, in relation to time; speed (sense )
    2. a vector quantity that specifies both the speed of a body and its direction of motion: abbrev. v

Etymology: Fr vélocité < L velocitas < velox: see velocipede

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