delta-v

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English

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Wikipedia

Etymology

From delta (change) +‎ v (velocity).

Noun

delta-v (plural delta-vs)

  1. (physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter.
  2. (astronautics) The maximum possible change in the scalar speed of a rocket or other vehicle if operated in a vacuum away from external forces.
  3. (astronautics) The minimum scalar change in speed required to perform a particular manoeuvre.