delta-v
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English
Etymology
From delta (“change”) + v (“velocity”).
Noun
- (physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter.
- (astronautics) The maximum possible change in the scalar speed of a rocket or other vehicle if operated in a vacuum away from external forces.
- (astronautics) The minimum scalar change in speed required to perform a particular manoeuvre.